Your New Eyeglasses Might Be Making You Depressed
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OPINION & PERSPECTIVE

Your New Eyeglasses Might Be Making You Depressed

iThrive Team
Aug 18, 2022

If you go out and get yourself a pair of prescription glasses anywhere in the country today, you will most likely be given ones that have a blue light filter included by default- whether you ask for it or not. They’re selling it to you. They’re charging you for it. And it might be having harmful effects on your health, especially if you’re not using them correctly. 

This was not the case 3 to 4 years ago. There has been a rapid growth in the market for blue-light filtering lenses in the last two years[13]. Work-from-home and online classes have obviously been a big contributor to this as well owing to concerns over increased screen time.

What is blue light and why do we need to block it?

This is fairly common knowledge today- so much so that smartphones today have a blue light blocking “night mode” enabled by default to turn on in the evenings. We have covered the negative health effects of blue light in our blog as well [1]. To reinforce context for this discussion though, let us go through the basics again:

The light that we see through our eyes is the visible part of the electromagnetic spectrum- this includes electromagnetic waves in the wavelength range of approximately 380 nanometers to 700 nanometers. Different wavelengths correspond to different colours that we see- you probably remember memorising “VIBGYOR” in middle school physics. The blue end of the spectrum has the highest energy and energy decreases with increasing wavelength with red light having the lowest energy.

The high-energy blue light(particularly from 400 to 480 nanometers) has a number of potent effects on our bodies:

  • This is the part of the light that wakes us up in the morning and makes us alert and active. It raises our cortisol(stress hormone) and serotonin levels.
  • It controls our circadian rhythm by stimulating the melanopsin receptors which are present both in our eyes and our skin cells.
  • It can have a destructive effect on our cells as well if exposure to it is not regulated properly.

Light runs our bodies

The way that it worked in ancestral times is the blue light which reached us as part of full-spectrum sunlight would wake us up in the morning and make us productive. After sunset, as the sunlight faded, our bodies would wind down and we would relax in the absence of the stimulating blue light. Serotonin converts to melatonin in the absence of blue light. Melatonin is the primary hormone responsible for making us sleepy. It also has antioxidant and reparative properties and helps the body heal and detox as we sleep. Any damage our cells incur from blue light during the daytime is also repaired during this time.

With the introduction of artificial white light from electronic sources, there have been a couple of major problems. The first one is obvious- the presence of blue light after sunset disrupts our melatonin secretion and subsequently our bodies’ winding down and healing process. This is one of the biggest drivers of chronic disease in modern times.

Coming to the second issue, you’d think artificial white light sources are not a problem during the daytime because we do need blue light during the day. And this is actually true to some extent. Experts are divided on this. Some do actually recommend getting artificial white light during the day in case of lack of outdoor access. And white light screens are the standard treatment for Seasonal Affective Disorder. 

Others though(and these are mostly experts much more deeply entrenched in EMF biology research) warn of the uneven distribution of blue light in artificial sources. Artificial lights have a disproportionately high amount of blue light compared to other wavelengths. 

Given below are spectrometer readings from unfiltered sunlight compared to that coming from an iPhone screen(link to full video also given in references[12]). You can see that the light distribution is far more even in natural sunlight and it has a lot more of the red part of the spectrum which has a healing and relaxing effect. This balances the triggering effect from the blue light. Whereas the iPhone screen light spectrum has a big spike of blue with very little of red light. This is a big factor in how long-term screen usage causes stress and headaches.

Light spectrum of full spectrum sunlight(top) vs light spectrum of light from an iPhone screen(bottom)

The healing effect of red light we speak of is very powerful as well and is the basis for red light therapy. There is a large number of studies showing the healing effects of red light.[11]

What are blue light-blocking glasses and how do they work?

Blue light blocking glasses are simply glasses that filter the light passing through them and reaching our eyes to block out the blue light partially or completely. In doing so they aim to undo the harmful effects of blue light as mentioned above. 

Blue light glasses available on the market can be broadly categorised into 3 categories. The first category would be the very lightweight blue light blocking glasses which block a small amount of blue light only. These appear almost transparent with a very mild yellow-to-green tint. All of the blue light blocking glasses currently being sold by spectacle retailers today fall under this category. 

These may be slightly helpful if you’re looking to block out blue light. But if you really want to rely on glasses to block out blue light you need heavier-weight ones which are specially made for this purpose. They’re available from brands like RA Optics and Bon Charge(Formerly BluBlox) that are popular worldwide for these products. These glasses are yellow or red in colour depending on their blue light blocking strength. The red ones block blue light almost completely and are thus meant for nighttime use. The yellow ones block it partially and are meant for daytime wear if you’re using screens for a long time because they help balance out the high amount of blue light from screens.

Complete and partial blue light-blocking glasses

Other blue light blocking options

Blue light-blocking glasses are definitely not a mandatory requirement for optimal health. To avoid the harmful effects of blue light, you can simply make sure to remove any blue light sources in your home post sunset, or at least a couple of hours before bed. Use yellow-to-red lights only. The dimmer, the better. The lower the height of the light source, the better. 

And if you can avoid regular LEDs and use flicker-free LEDs or incandescent lights instead that’s even better because the flicker in LEDs is a small problem too.

You can use blue light filtering software(or just the night mode option which is present by default on most devices today) on your screens.

These options are not only cheaper but also more effective because our skin cells have some blue light-sensing melanopsin receptors as well, which blue light-blocking glasses do not protect.

The problem: Full-time usage of blue light blocking

As we explained in the beginning, blue light while harmful at the wrong times and in the wrong amounts is still essential to our bodily functioning. We need full spectrum unfiltered sunlight during the daytime. Blue light wakes us up in the morning and makes us alert and active. It triggers cortisol and serotonin production which makes us happy and has an antidepressant effect.[2][3]

But how important is this really? What happens if we deprive the body of blue light?

Given the known functions of blue light in our physiology, the effects of its deprivation are easy to predict. And that’s what the data shows as well. Blue light deprivation is linked to depression, fatigue and circadian rhythm disruption. 

This is why we tend to get gloomy and depressed when it is cloudy for too many days in a row. Seasonal Affective Disorder or SAD is a mental health condition where people suffer from temporary depression during winter when there is low sunlight exposure. This is more prevalent in places farther from the equator which get relatively lesser sunlight.

The standard treatment for SAD is white light therapy wherein patients sit in front of a white light screen.

White light therapy for treating Seasonal Affective Disorder

In a study on Mongolian Gerbils, the animals were housed in two groups under white light with one group receiving unfiltered white light and the other group receiving the light through a blue light filter.

From the study paper:

“We found that blue light deprivation (BLD) induced depression-like behaviour in gerbils. Melatonin lost its rhythm, and corticosterone (CORT) levels decreased in the morning in the BLD group….Furthermore, 5-HT(serotonin) in the serum and brain was decreased after BLD. Additionally, BLD affected the blue light sensitivity protein melanopsin and its pathway, with downregulation of the proteins melanopsin..” [4]

There are many other similar studies, mostly on rats, that demonstrate different depression mechanisms getting elevated when blue light was deprived.[5][6][7]

When you wear a blue light filtering lens in front of your eyes full time, including during the daytime when you’re outside, you’re putting yourself in a blue light deprivation state and may be putting yourself at risk for the above-mentioned health issues.

This is the issue we wish to discuss. Spectacle manufacturers are selling spectacle lenses with blue light filters added by default. The premium lens models available today almost all have blue light filters added by default. The premium models are the ones that store owners sell to you on priority unless you explicitly ask for a less expensive model. Blue light filtering is just one of the many added features in these lenses so it is most often not explicitly advertised or discussed by store sales executives. Thus consumers are buying blue light filter glasses unaware of it.

Additionally, even if you’re well aware of it and don’t want a blue light filter, you’re still incentivised in a big way to get it anyway because the premium lenses have all the best features-  such as clearer vision, the thinnest and lightest lenses, dust and water repellence, smudge resistance, crack resistance etc. All of which you lose out on getting a lower model.

Do spectacle sellers have any idea?

It doesn’t seem so. The thing is opticals have always been associated with eye health only and the only medical specialities referred to are optometry and ophthalmology. But when you start messing with wavelength filtering, things go way beyond the scope of these two respective disciples. As we mentioned, light runs our bodies.

So what, according to opticians, is the benefit offered by blue light-blocking glasses?

There is research showing blue light causes cellular damage and it is claimed that it causes retina damage as well. This is the primary selling point used by spectacle retailers.

Is there any truth to it?

As we mentioned earlier, with natural full spectrum sunlight and the day-night cycle, the damage from blue light isn’t an issue at all. It’s just one of many natural stressors, part of our biological cycle. 

But with artificial light? So far there is no data to show there is any significant damage to the retina. And ophthalmology authorities across the world have stated the same conclusion on this matter as well. 

The American Academy of Opthalmology (AAO), has said there is no credible scientific evidence that the light from digital screens is harmful to the eyes.

According to the American Macular Degeneration Foundation (AMDF), there's no evidence that blue light can damage the eye, and therefore, according to them, any claims that glasses offer protection against retina damage or eye conditions like macular degeneration aren’t accurate.  

Boots Opticians was fined £40,000 over misleading ads for blue light blocking glasses in 2015

In 2015, Boots Opticians, a British spectacles retailer was fined £40,000 in the UK for exactly similar claims in their ads for blue light-blocking glasses [8]. This was a time when blue light-blocking glasses had just started to emerge in the global market.

Even after this penalty, similar marketing strategies were continued by multiple retailers, a BBC Watchdog investigation in the following year reported. [9]

We went through all stories in the mainstream Indian press in the last 3 years on the rise of blue light blocking glasses and they all report ophthalmologists saying blue light from screens can strain and damage the eyes. To be fair, they do also mention how blue light can cause headaches and circadian rhythm disruption which are valid concerns of course. But the main focus is on eye health only.

The experts needed to be consulted on this matter are neuroscientists and endocrinologists and not ophthalmologists and optometrists. Because the primary effect light has on our bodies is neurological and hormonal. 

The general public perception on the matter is that blue light is a universally harmful and damaging element and blocking out as much of it and as often as possible is the correct approach. Nuance, as usual, is lost. 

Spectacle sellers, as we mentioned, are focused on the eye health damage perspective. They’re most likely unaware of any negative health effects from full-time blue light blocking themselves let alone inform consumers or do anything about it. Our experience with the store salespersons has been the same as well.

Himalaya Opticals, in a blog post advertising their Digisafe blue light blocking lenses, actually addressed the use case of their full-time usage. They listed down the benefits of their blue light-blocking glasses in different scenarios, including outdoors in the Sun;

Computer Users – Many employees spend at least 8-10 hours a day, which is a long time to be exposed to blue light rays. Overexposure can lead to eye strains and uncomfortable side 

effects. So, protect your eyes by wearing a Digisafe lens and work worry-free.

Smartphone Users – Research shows that people reach their phones 120 times each day. Whenever you want to use your smartphone, wear a Digisafe lens to safeguard your eyes.

Spending Time Outdoors – Digisafe lens allows a healthy amount of blue light into our body and also blocks out the potentially harmful blue light rays.

Staying Indoors – At home, LED light bulbs and Televisions emit blue light. So, Digisafe lenses should be worn anytime when you are near a digital screen or a device that emits blue light.

This is just plain marketing rubbish of course. They seem to be taking a page out of American eyewear retailer Spy Optic’s book who have launched a full-fledged marketing campaign on the same lines for their “Happy Lens” glasses that are supposed to “help boost your mood and alertness and optimize color.” [12]

They allege that full spectrum sunlight has both beneficial and harmful blue light waves which are the longer and shorter wavelengths of blue light respectively. And the glasses achieve their effect by blocking the harmful rays. They make no mention of any specific wavelength that they deem harmful. Nor do they cite any data to support their claims(apart from saying “science has shown”).

As the experience of one of our teammates at a Titan Eye Plus outlet revealed, there also seems to be some ambiguity with which lens models have a blue light filter and which don’t. After being sold the top model lens which had a blue light filter, our teammate filed for an exchange for a lower model which they were assured would not have a blue light filter. But the new lens turned out to have the exact same tint in it as the previous one.

We reached out to the leading spectacle retail brands in India trying to inform them about all of this and asking them to share their opinion on it. We haven’t heard back from any of them yet.

Who is at risk?

If you don’t wear your glasses full-time and only wear them when working on your computer or at night-time, you shouldn’t have anything to worry about. You may actually get some benefit from the glasses by blocking out the excess artificial blue light, especially if your daily routine includes long durations of screen use. A lot of people actually report a reduction in headaches after using blue light-blocking glasses.

However, if you’re wearing glasses full-time that have a blue light filter, including during the daytime when you’re outside, then you have reason to be concerned. People with a history of depression and other mental health issues need to be extra careful because they need to avoid anything that might aggravate symptoms.

How bad is it really?

Some might argue that the blue light blocking capacity of these lightweight blue light blocking glasses being sold by spectacle retailers is very low and thus there is nothing to worry about. It’s true that compared to the dedicated red and yellow blue-light blocking glasses which we talked about earlier, these glasses are very mild in effect.

But no one is wearing those dedicated blue light glasses full-time. If someone did, we expect the effects would be immediately noticeable unlike these ones with lightweight blue light filters.

But the fact is we just don’t know. Because all the studies done so far involve complete filtering of blue light wavelengths. There have been no studies using partial filtering attempting to study the extent of blue light filtering that would cause noticeable physiological effects. 

We assume there is a linear relationship- that if complete blue light deprivation caused some symptoms, lesser and lesser deprivation(less filtering) would cause lesser and lesser symptoms. As with all physiological stressors, we expect the effect would be individualised and highly dependent on the person.

Light health experts have started to use the term “junk light” to refer to any light coming from an artificial source or filtered through any material. Even sunlight through your window is considered junk light because even completely transparent untinted glass modifies natural sunlight to some degree. 

Andy Mant, the founder of Bon Charge, said he’s seen multiple reports of people who used to wear glasses full-time, after getting LASIK, experienced various health improvements.

So anyone wearing glasses with a blue light filter full-time is actually just undertaking the risk of running a small experiment on themselves. It’s probably nothing super drastic- in our modern urban lifestyles rife with all kinds of health stressors such as chemtrails, processed foods, microplastics etc, this is just one more addition to the list. 

But we, at iThrive, strongly believe in informed consent. Consumers must be fully informed about the health risks of any product being sold to them. And we hope to communicate the same through this article.

How to know if your glasses have a blue light filter?

You should be provided information from your retailer of course on whether the lens model you got has a blue light filter. But people who got their lens fitted a long time ago might not remember their lens model details. And like we mentioned there seems to be some ambiguity on the part of some of the sellers too on which models have a blue light filter too. Sometimes, even some anti-glare lenses, which is a commonly used old technology, have some degree of blue light filtering. 

The way to check is simply to go outside and hold your glasses against the daylight and see if you notice any tinting. If you don’t notice anything at all, your glasses likely don’t have a filter. A yellow-to-green tint indicates a filter. There seems to be variation in people’s perception to this tinting as well because some people don’t notice it as much.

Survey

We ran a small survey where we asked people what brand of lenses they were using, whether they wore it full-time, whether they knew if it had a blue light filter or not and whether they were aware of all possible physiological effects of using a light filter. We also had them hold up their glasses against daylight to check for tinting.

In just the 17 participanats, we found 6 cases of full-time usage of the blue light-filter lenses.

You can see the complete survey data entries here - [14].

UV filter

While we’re here, we wanted to cover UV light filers as well. UV filters have been used in sunglasses for a long time, but recently with the advent of blue light filters, manufacturers have started adding UV filters along with the blue light filers to spectacle lenses as well. Ultraviolet violet light is part of the spectrum below 400 nm. It’s not visible. To emphasise that they’re completely filtering out UV, manufacturers also often use the term “UV-400” to emphasise that they’re completely blocking all wavelengths below 400 nm.

There has been much research and controversy over UV light causing skin damage and skin cancer and how necessary sunscreens are. We have covered this at length on our blog as well[10].  Spectacle and sunglass manufacturers claim that their UV blocking products protect your eyes from UV damage but, as is the case with blue light, there is no specific research showing that the amount of UV light we’re getting from the sun causes any significant eye damage.

Are there any important functions that UV coming through the yes play in our body? -that UV filters may be hindering? There are a few that have been pointed out but they’re not fully understood or conclusively demonstrated yet. One of the most popular light and EMF health researchers, Dr jack Kruse theorises that UV light coming through the eyes reacts with the DHA in the eyes(the highest concentration of DHA is in the eyes) to produce DC electric current which helps charge and power the mitochondria.

The issue with sunglasses

A note on sunglasses: besides the obvious reason why they're bad for you, that is, you want to be getting unfiltered sunlight into your eyes and not blocking it. Another issue with them, and to an extent with blue light filter glasses too if you’re wearing them outside, is they block the blue light and UV light reaching your eyes while you’re in the Sun- while your skin continues to get direct sunlight. 

When you see bright daylight, the blue light is signalling your brain to turn up cortisol production and other hormones that act as an antagonist to the UV light stress and damage your body is experiencing. This natural mechanism gets derailed when you block the light reaching your eyes but not your skin.

All the science and data apart, you may be able to perceive for yourself the effects, if any, your blue light-blocking glasses have been having on you. The tinting in the glasses makes your surroundings appear dull and subdued- similar to sunglasses but to a much smaller degree. If you make your surroundings appear permanently dull and subdued, as if you’re in a gloomy overcast place permanently, it’s not hard to imagine why that would make you depressed and drowsy. As we mentioned earlier though, some people don’t seem to be able to perceive the tinting as much. Does that mean they’re less prone to these negative effects? We have no idea.

If you’ve been wearing blue light-filter glasses full time or plan to start doing so(we obviously don’t recommend it), do keep an eye out(pun not intended) for these potential issues. Better safe than sorry.

REFERENCES

  1. https://www.ithrivein.com/blog/emf-bluelight-and-circadian-rhythm
  2. https://www.ithrivein.com/blog/does-sunlight-really-cause-skin-cancer
  3. https://www.ithrivein.com/blog/top-8-benefits-of-sunlight
  4. https://www.frontiersin.org/articles/10.3389/fpsyt.2020.00233/full
  5. https://pubmed.ncbi.nlm.nih.gov/33249495/
  6. https://pubmed.ncbi.nlm.nih.gov/18347342/
  7. https://pubmed.ncbi.nlm.nih.gov/24813431/
  8. https://www.aop.org.uk/ot/industry/high-street/2017/05/26/boots-opticians-fined-40000-over-misleading-blue-light-advertising
  9. https://www.aop.org.uk/ot/industry/high-street/2016/11/09/bbc-watchdog-investigates-blue-light
  10. https://www.ithrivein.com/blog/does-sunlight-really-cause-skin-cancer
  11. https://draxe.com/health/red-light-therapy/
  12. https://www.spyoptic.com/happy
  13. https://www.digitaljournal.com/pr/computer-glasses-market-size-in-2022-top-countries-data-business-growth-factors-share-industry-analysis-by-top-manufactures-insights-and-forecasts-to-2028-118-report-pages
  14. https://drive.google.com/drive/folders/1f8FzT3YG4_SUGziiqpueZphfnIbqqLw7?usp=sharing

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The problem with RO water 

Reverse osmosis water purifiers like Kent RO and similar systems definitely does a fantastic job of removing contaminants, heavy metals, fluoride, and bacteria from drinking water. That part is honestly valuable, especially here in Indian cities where tap water quality is inconsistent.

But let me first talk about the catch: RO filtration strips everything including the naturally occurring minerals that make water beneficial. So basically what you're left with is very clean, very empty water.

Drinking demineralised water consistently, especially during summer or physical activity, can actually dilute your body's electrolyte balance. The result? You may be drinking plenty of water but still experiencing fatigue, brain fog, muscle cramps, or persistent thirst, which are all the classic signs of inefficient hydration.

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The summer hydration trap

The Summer Hydration Trap

During summer, the stakes are higher than usual. Rising temperatures push your body into continuous fluid stress like you're sweating more, your blood vessels are dilating, and you're losing water and minerals at an accelerated rate. This is when poor hydration practices really start to show up.

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The major takeaway here is that summer doesn't just increase your need for water, it rather increases your need for minerals. Hydrating smarter beats hydrating more.

How to actually drink water: Practical Habits

Beyond what you put in your water, how you drink matters too.

Sip, and please don't gulp. Drinking large amounts of water at once overwhelms your kidneys and passes through without being absorbed well. Sipping consistently through the day allows your cells to keep pace.

Drink water away from meals or at least don't flood meals with large quantities. 

A small amount of water with food is fine, but large quantities can dilute digestive enzymes and stomach acid.

Morning hydration matters. After 7 to 8 hours of sleep, you wake up mildly dehydrated. Start your morning with a glass of mineral-rich or lightly salted water before coffee.

Listen to your body, never chase not the number just for the sake of it. The 8 glasses a day rule is a general guideline, and not a universal prescription. Your needs vary on the basis of your size, activity level, climate, and diet. Pale yellow urine is a good practical indicator of adequate hydration.

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What about Kangen water and ionised water? 

Kangen water machines have become popular in wellness circles, and there's a lot of marketing around their alkaline, ionised output. It's worth understanding what these machines actually do and offcourse what they don't.

Kangen machines work through electrolysis passing an electrical current through water to separate it into alkaline and acidic streams. Sources also claim this also structures the water, but this is where the science gets murky.

Water structuring is about the strength of hydrogen bonds between water molecules. Electrolysis, by its very nature, breaks hydrogen bonds to separate the water's components. Ionisation through electrical hydrolysis creates a water that may carry an electrical charge, but that charge doesn't equal molecular structure. The two are not the same thing.

There are also practical concerns:

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None of this means ionised water has no benefits, molecular hydrogen does have genuine antioxidant research behind it. But there are simpler, more stable, and far more affordable ways to get those benefits than a machine costing several lakhs. Adding trace minerals and focusing on clean, remineralised water gets you most of the way there.

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A simple hydration protocol to start today

The iThrive Hydration Formula

You don't need expensive equipment. Here's what actually moves the needle:

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Key Takeaway 

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If you’re still feeling tired, thirsty, bloated, dizzy, or experiencing brain fog despite drinking plenty of water, it may be time to look beyond quantity and focus on water quality, mineral balance, and hydration habits.

Start simple: filter your water, remineralise it, sip consistently, and support hydration with minerals and water-rich foods. Your body doesn’t just need water, it also needs the right environment to use it.

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Excessive Heat Is Not “Normal”: How to Protect Your Body During Heat Waves

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Why Excessive Heat Feels Worse Today

If you’ve been feeling like summers suddenly became unbearable, trust me you are not imagining it. The current temperature in many cities is consistently touching dangerous levels earlier in the season itself. On top of it the humidity, and the body experiences even greater thermal stress.

For instance, 38°C with humidity feels like 45°C to the body, sweat stops evaporating efficiently, core temp rises rapidly, and electrolyte loss increases rapidly. 

This is also exactly why many people constantly check platforms like Zoom Earth to monitor heat patterns and weather this week before travelling or stepping outdoors. Honestly, external heat is only one side of the story, internal excessive heat in the body matters too.

What Happens Inside the Body During Excessive Heat?

What Excessive Heat Actually Does Inside Your Body

Your body is constantly trying to maintain a stable internal temp. When environmental heat rises excessively the blood vessels dilate, minerals are lost, stress hormones start shifting, sweating increases, and heart rate rises. 

Initially, this is protective but prolonged excessive heat forces the body into survival mode.

1. Mineral Depletion Increases Rapidly

Sweating does not only cause water loss. On the other hand it also depletes sodium, magnesium, potassium, as well as chloride. 

This is why many people experience symptoms such as headaches, dizziness, anxiety, fatigue, muscle cramps, and heart palpitations during heat waves. 

Most people keep drinking plain water but never replace electrolytes properly and that often worsens symptoms.

2. Digestion Slows Down

One of the most overlooked effects of excessive heat in the body is poor digestion. During heat stress the blood flow gets redirected towards cooling mechanisms, the production of acid reduces, appetite decreases and bloating worsens. 

This is why heavy oily meals feel unbearable during peak summer. Your body is already struggling to regulate temp. Digesting inflammatory food adds another layer of stress.

3. Cortisol and Stress Response Increase

Excessive heat itself acts as a physiological stressor. This means your nervous system stays more activated than usual. You might notice symptoms such as poor sleep, brain fog, exhaustion, irritability, anxiety, as well as low patience. 

Most of you’ll assume you all are “burnt out” mentally when in reality your body is struggling with heat adaptation.

Excessive Heat Celsius: When Does It Become Dangerous?

There isn’t one exact number because humidity changes how heat affects the body.

But in general:

When Heat Becomes Dangerous

However, humidity can make even 34°C dangerous. The body cools itself through sweat evaporation. So when the humidity is too high, sweating becomes inefficient.

This is why coastal cities often feel worse despite slightly lower current temperature readings.

Signs Your Body Is Not Handling Heat Properly

Most people ignore early symptoms. But excessive heat in the body usually starts giving warnings before things become severe.

Early Warning Signs

  • Persistent headaches
  • Heavy fatigue
  • Excess sweating
  • Dizziness
  • Nausea
  • Increased thirst
  • Dark urine
  • Muscle cramps

Moderate Heat Stress Symptoms

  • Brain fog
  • Elevated heart rate
  • Anxiety
  • Weakness
  • Irritability
  • Poor appetite
  • Difficulty sleeping

Severe Symptoms

  • Confusion
  • Fainting
  • No sweating despite heat
  • Rapid pulse
  • High body temp
  • Disorientation

This can indicate heat stroke and requires immediate medical attention.

How to Protect Yourself During Heat Waves

How to Protect Your Body During Heat Waves

Now comes the most important part of this entire blog. 

The goal is not just to drink more water, the goal is helping the body regulate heat effectively.

1. Prioritise Electrolytes, Not Just Water

One of the biggest mistakes during excessive heat is drinking excessive plain water without minerals because this can then dilute electrolytes further.

Focus on consuming fresh coconut water, homemade electrolytes drinks, lime water with rock salt and potassium-rich foods. 

Traditional Indian cooling drinks actually make scientific sense here.

Aam Panna

The raw mango-based drink helps replenish electrolytes while also supporting cooling. You can naturally include recipes such as Aam Panna Recipe during peak summer days.

Solkadhi

Solkadhi supports digestion, hydration, and cooling simultaneously. You can also try Solkadhi Recipe for gut-friendly summer recovery.

2. Reduce Heat-Producing Foods

During extreme weather this week, your digestive system cannot handle heavy inflammatory meals efficiently.

So temporarily reduce consuming fried food, alcohol, ultra-processed food, excessive caffeine, and very spicy meals.

Rather focus on consuming hydrating fruits, mineral-rich vegetables, lighter proteins, curd, and water-rich meals.

3. Respect Circadian Rhythm

This matters more than people realise. Late nights worsen various factors such as dehydration, cortisol imbalance, inflammation, and heat intolerance.

So here at iThrive, we often encourage early dinners, sunlight exposure in the morning, and reduced blue light exposure at night during summers.

The nervous system adapts better to environmental stress when circadian rhythm is well aligned.

4. Avoid Peak Heat Exposure

Try limiting outdoor activity between 12 PM to 4 PM especially if you have diabetes, blood pressure issues, obesity, thyroid dysfunction, or are elderly.

These groups are significantly more vulnerable to excessive heat complications.

The Hidden Link Between Excessive Heat and Inflammation

This is where things become important from a functional nutrition perspective.

Excessive heat does not just affect hydration, it also increases oxidative stress and inflammation. We once had a client casually mention recurring heat exhaustion during consultation. Initially, it sounded minor. But deeper assessment revealed chronic mineral depletion, elevated inflammatory markers, poor sleep, and nervous system dysregulation. And honestly, that conversation changed something for us. As we realised, hundreds of people silently struggle every summer thinking exhaustion is “normal.”

It isn’t.

Heat waves expose weaknesses that are already present inside the body such as nutrient deficiencies, poor metabolic flexibility, inflammation, nervous system dysregulation, and inadequate recovery capacity.

And this is exactly why some people adapt easily while others completely crash during summers.

Key Takeaway 

The reality is simple. Excessive heat is no longer just a seasonal inconvenience, it is becoming a genuine health stressor. So while you are checking the current temperature or monitoring weather this week through tools like Zoom Earth can help you prepare externally, real protection begins internally.

Your body needs minerals, hydration, nervous system support, anti-inflammatory nutrition and proper recovery.

Here at iThrive, after years of working in functional nutrition since 2019, we’ve repeatedly seen how small foundational changes dramatically improve resilience during summers. Because healing is not only about surviving illness. Sometimes it’s about helping the body adapt to the environment it’s living in every single day.

Addison’s Disease Symptoms in Women Mistaken for Burnout
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Mar 23, 2026

Addison’s Disease Symptoms in Women Mistaken for Burnout

Tired, dizzy, craving salt? These could be Addison's disease early symptoms in women, not burnout. Learn how low cortisol signs differ and what tests to ask for.

Introduction

You wake up exhausted even after eight hours of sleep. You crave salt so badly you find yourself adding it to everything, even fruit. The skin on your knuckles and elbows has been darkening for months with no explanation. Your blood pressure keeps dropping, and you feel dizzy every time you stand up too fast. You have seen three doctors, and each one hands you the same verdict: burnout, stress, or anxiety.

But what if your body is not reacting to a busy schedule? What if something far deeper is happening?

Addison's disease in women is one of the most underdiagnosed endocrine conditions in the world, not because it is rare, but because its early symptoms mirror the exact language of modern exhaustion so completely that both women and their doctors consistently miss it. This blog is about changing that. It is about understanding what Addison's disease actually does inside the female body, why low cortisol gets confused with adrenal fatigue, what the real warning signs look like, and what a smarter approach to healing involves.

What Is Addison's Disease and Why Does It Affect Women More?

Addison's disease, also called primary adrenal insufficiency, occurs when the adrenal glands stop producing enough cortisol and often aldosterone as well. Cortisol is not just a stress hormone. It regulates blood pressure, controls blood sugar, manages inflammation, and keeps the immune system in balance. When its production collapses, the entire hormonal ecosystem begins to destabilize.

The most important thing to understand about Addison's disease causes is that in roughly 70 to 90% of cases, the trigger is autoimmune. The immune system mistakenly attacks the adrenal cortex, the outer layer responsible for producing these critical hormones. This is why it is called autoimmune Addison disease, and this is why women are disproportionately affected. Estrogen tends to upregulate immune activity, which means the very biology that makes a woman's reproductive system resilient also makes her more susceptible to immune misfires.

Addison's Disease Early Symptoms in Women: What to Actually Watch For

The early symptoms of Addison's disease in women do not arrive loudly. They arrive quietly, over months or years, disguised as life stress.

The Fatigue That Does Not Respond to Rest

This is not regular tiredness. Women with adrenal insufficiency describe a fatigue that sits in the bones. It is persistent, disproportionate to activity levels, and does not improve after rest, weekends off, or even vacations. The body is not producing enough cortisol to sustain energy metabolism, so cells cannot generate the fuel they need to function. Many women spend years attributing this to poor sleep habits before anyone thinks to test adrenal function.

Salt Cravings That Feel Compulsive

When aldosterone production drops, the kidneys lose their ability to retain sodium effectively. The body compensates with intense cravings for salt. If you find yourself adding extra salt to every meal, craving salty snacks even when you are not hungry, or feeling noticeably worse on a low sodium diet, this is not a quirk. It is a physiological distress signal.

Hyperpigmentation in Specific Areas

As cortisol production falls, the pituitary gland releases more ACTH in an attempt to stimulate the adrenals. ACTH shares a molecular structure with melanocyte stimulating hormone, which controls skin pigmentation. The result is a darkening of the skin at pressure points: knuckles, elbows, knees, inner lips, and gum lines. Women often attribute this to sun exposure or natural skin variation. In the context of other symptoms, it is a significant clinical flag.

Low Blood Pressure and Orthostatic Dizziness

Aldosterone helps maintain blood volume and vascular tone. Without adequate levels, blood pressure drops and the body struggles to respond to postural changes. Standing up quickly becomes an event. Dizziness, lightheadedness, and fainting episodes become regular occurrences, typically investigated through cardiology before anyone considers endocrinology.

Nausea, Abdominal Pain, and Unexplained Weight Loss

The gastrointestinal system is exquisitely sensitive to cortisol levels. Low cortisol produces nausea, vomiting, abdominal pain, and diarrhea, symptoms that look indistinguishable from IBS or anxiety driven gut dysfunction. Combined with reduced appetite and altered metabolism, unexplained weight loss over months is another signal that rarely prompts adrenal investigation.

Mood Changes, Irritability, and Depression

Cortisol plays a direct role in mood regulation through its interaction with serotonin, dopamine, and the HPA axis. When cortisol is consistently low, emotional regulation becomes difficult. Irritability, low mood, and a sense of profound emotional flatness are reported by many women with adrenal insufficiency long before any diagnosis is made.

How Addison’s Disease Progressively Drains Your Energy

Low Cortisol vs Adrenal Fatigue: The Distinction That Changes Everything

The term adrenal fatigue has become widely popular in wellness circles. It describes a state in which chronic stress is said to deplete adrenal output, producing suboptimal cortisol levels that cause fatigue and burnout. While stress absolutely disrupts HPA axis function, adrenal fatigue as a distinct diagnosable medical condition is not currently recognized by mainstream endocrinology.

Adrenal fatigue vs Addison's is a comparison that matters because the two sit at very different points on the severity spectrum. With adrenal fatigue, cortisol is described as suboptimally low but not absent. With Addison's disease, the adrenal cortex has been structurally damaged, and cortisol production is genuinely and measurably deficient.

The consequences of confusing the two are serious. Someone managing what they believe to be adrenal fatigue with lifestyle changes and adaptogens, when they actually have Addison's disease, is at real risk of an adrenal crisis. This is a medical emergency in which cortisol levels drop so severely that blood pressure collapses, vomiting occurs, and the body enters shock. It can be life threatening within hours without emergency hydrocortisone.

Low cortisol vs adrenal fatigue symptoms can appear similar on the surface: fatigue, salt craving, mood changes, and digestive discomfort appear in both. The difference lies in the degree, the progression, and the presence of hallmark signs like hyperpigmentation and postural hypotension that point toward true primary adrenal insufficiency rather than functional HPA dysregulation.

Adrenal Fatigue vs Addison's Disease: How to Tell the Difference

Why Addison's Disease Gets Misdiagnosed as Burnout in Women

Studies suggest the average time from symptom onset to diagnosis ranges from one to ten years. In women, the delay is often longer.

Several factors drive this. The symptoms overlap almost perfectly with conditions women are routinely diagnosed with, including depression, anxiety, chronic fatigue syndrome, IBS, and burnout. When a woman presents with tiredness, low mood, stomach issues, and dizziness, medicine has historically looked toward psychological explanations first.

Additionally, standard blood tests ordered in primary care do not include an early morning cortisol or an ACTH stimulation test, which are the investigations needed to identify adrenal insufficiency. A normal complete blood count or metabolic panel will not catch Addison's disease.

Women are also more likely to rationalize symptoms as a function of busy lives. The cultural narrative that exhaustion is normal for women managing careers, households, and family responsibilities creates an internal dismissal that delays help seeking for years.

Addison's Disease Diet: How Nutrition Supports Adrenal Function

While Addison's disease requires medical management with hormone replacement therapy, nutritional support plays a meaningful role in managing symptoms and reducing flare risk.

An Addison's disease diet centers on a few core principles. Sodium intake must remain consistently adequate since aldosterone deficiency means the body is chronically at risk of sodium depletion, particularly during exercise, illness, or stress. A low sodium diet is actively counterproductive in this condition.

Blood sugar stability is equally essential. Without adequate cortisol, the liver cannot maintain stable glucose between meals. Small, frequent meals rich in complex carbohydrates, protein, and healthy fats help prevent the blood sugar dips that trigger symptom flares. Refined sugar and processed carbohydrates amplify the glucose instability that the adrenal compromised body cannot recover from easily.

Because autoimmune Addison disease involves immune dysfunction, an anti-inflammatory dietary approach is broadly supportive. Omega 3 rich foods, colorful antioxidant dense vegetables, and the reduction of processed food all help lower the inflammatory burden on the immune system. Vitamin D, magnesium, vitamin B5, and vitamin C are nutrients specifically involved in adrenal hormone production and immune regulation, and at iThrive we commonly see these depleted in women with both autoimmune and adrenal conditions.

The Addison’s Disease Diet Plate: What Your Adrenals Actually Need

What a Root Cause Approach to Addison's Disease Actually Looks Like

At iThrive Alive, the approach to adrenal conditions begins by asking what made the immune system attack the adrenal glands in the first place. Autoimmune triggers rarely arise in isolation. Gut permeability, chronic infections, heavy metal burden, nutrient deficiencies, and unresolved inflammatory patterns are common upstream contributors to autoimmune activation.

For women already diagnosed and on cortisol replacement therapy, a functional nutrition approach does not aim to replace the medication. It aims to reduce the total inflammatory and immune burden so the body is not fighting on multiple fronts simultaneously. Better gut health, lower inflammatory signaling, stable blood sugar, and optimized nutrient status all contribute to fewer flares and a more stable daily life.

If you are noticing a persistent pattern of unexplained fatigue, intense salt cravings, postural dizziness, or skin changes that has never been adequately explained, it is worth asking whether adrenal function has truly been assessed. You can book a root cause consultation with our nutritionist to get a clearer picture of what is actually driving your symptoms.

Key Takeaway

Addison's disease in women is a real, measurable, and manageable condition that gets buried beneath years of misdiagnosis not because it is invisible but because medicine has not been trained to look for it where women carry it. Fatigue is not laziness. The salt cravings are not a personality trait. The dizziness is not anxiety. The skin changes are not cosmetic. They are a coherent biological story told by a body whose adrenal glands are struggling to keep up. Understanding the difference between low cortisol vs adrenal fatigue symptoms, recognizing the adrenal insufficiency symptoms women actually experience, and knowing that autoimmune Addison disease is far more common in women than the medical system acknowledges are the first steps toward finally getting the right answer. From there, a root cause approach that addresses the immune environment, supports adrenal nutritional needs, and stabilizes the hormonal terrain can meaningfully improve the experience of living with this condition. 

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