Why does stress cause hair loss? And 3 Easy Steps To Recover!

by Deborah Maragopoulos FNP | Jan 9, 2023 | Women's Health, Blog | 0 comments

Stress-Related Hair Loss: Why It Happens

Have you noticed increased shedding a few months after a stressful event? Stress-related hair loss is more common than most women realize. When your body stays in fight-or-flight mode, cortisol rises, hormones shift, and hair follicles move into the shedding phase. The result is thinning, clumps of hair loss, or changes in hair texture.

What Is Stress-Related Hair Loss?

When you're under stress, your hypothalamus-pituitary-adrenal axis acts as if a tiger is chasing you.  It doesn’t matter if the danger is life-threatening, or you’re just worried about being late.  You get the same reaction. Your adrenals produce adrenaline, which increases your blood pressure and your heart rate, and then you produce cortisol in order to fuel the fight or flight.

Now if you don’t need to run away from danger, all that extra cortisol is highly inflammatory. Cortisol and its metabolite cortisone are catabolic hormones which break down tissue. 

And one of the tissues that it tends to break down are your hair follicles. Now, you don't always see hair loss right away, so sometimes it's hard to say that it was a stressor that caused it. 

This is because your hair responds to your hormone levels in a delayed fashion.

You have three different types of hair. You have hair that's in a growing phase, hair that’s stagnant, and hair that's shedding. When you're under stress, you have more shedding because of the catabolic effect of cortisol. When your hypothalamus is occupied by constantly orchestrating a stress response, your hair growth promoting hormones get less stimulus. Healthy hair growth is dependent upon estrogen and T3 production. 

In the most severe cases of cortisol-related hair loss, your hair can fall out in clumps. I have seen patients who have lost all the hair on their head due to major stress. Once the stressors resolve, the hair can grow back. 

Your adrenals get worn out by the constant stress response. Adrenal fatigue can contribute to slow hair regrowth from lower DHEA production. DHEA helps you metabolize protein and fat.So with less DHEA, you don’t have the building blocks for healthy hair growth.

It’s important to support your adrenals and your hypothalamus to calm down the HPA axis, so that your hair can actually grow back. 

Because your adrenals and thyroid are controlled by the same hypothalamic hormone, POMC, stress can affect thyroid hormone production. Hair loss may be related to your low thyroid hormones, particularly T3 which stimulates hair growth. You'll see a generalized thinning and excessive shedding, but it won't be the patchy loss that you see with the cortisol-related hair loss. 

Stress can affect your sex hormones, so if you're under stress for a long enough period of time, all your progesterone is going to fuel cortisol production. Your periods can become irregular, and your estrogen levels will fall, which will affect hair growth.  Because your estrogen levels fall, more testosterone is free, which can accelerate hair loss, especially in the male pattern, which is in the front and on your crown. 

So what can you do about stress related hair loss? 

First and foremost, you have to deal with the stressor.

You may not be able to change the financial situation, the loss you've had in a relationship, or the death of a loved one, but you can change the way you react to it. Consider therapy, meditation, deep breathing, or any other tactic you use to calm down. I have a CALM meditation that is available in my Hormone Reboot Training, which is designed to train your body to make GABA, a calming neurotransmitter produced by the parasympathetic nervous system. 

Another important step you need to take is supporting your hypothalamus.

If your hypothalamus is constantly being triggered by your stress response, it’s going to cause system-wide miscommunication – with your adrenal glands, your thyroid and your ovaries or testes. I recommend using Genesis Gold® to support your hypothalamus and provide it with the nutrients it needs to regulate your hormones and help stimulate new hair growth.

I have had patients who did not necessarily have hair loss, but thinning hair, notice that their hair was getting thicker with less shedding after taking Genesis Gold®. Hair growth is not going to happen right away because your hormones have to get back into balance first. About two to three months later, you'll start noticing new hair growth and less shedding. 

Some people notice that their hair quality changes. I have always had thick hair, but before Genesis Gold®, it was dry, brittle and frizzy. Within months of taking Genesis Gold®, my hair became incredibly soft and luxurious. I can credit the phytonutrients, but it's really because my hormones got into better balance. Stress can make your hair very unhealthy as the inflammatory cortisol strips the follicle of nutrients, causing dry, unhealthy hair. 

The third thing that you need to do in order to reduce stress-related hair loss is to get enough sleep.

If you're not getting deep sleep, you're not in that restorative phase long enough to grow new tissues, which includes hair. You need at least seven to nine hours of deep sleep in the dark every night. If you’re sleep deprived, something’s got to give, and your hair is not crucial to your survival. So the nutrients and the resources are going to go to vital organs like your heart, kidney, liver, brain before it goes to your hair. You want to make sure that you're getting deep sleep to reduce your adrenal stress response and help grow healthy hair. 

If you have any questions about stress-related hair loss, you can join me in my hormone support group. I do Facebook Lives on a regular basis to answer your questions. You can get access to the group by signing up for my Hormone Reboot Training, which is free. Plus you'll get access to some amazing mini courses I teach to help you to learn what you need to do in order to heal and balance your hormones.

How long does stress-related hair loss last?

Stress-related hair loss typically appears 2–3 months after a stressful event and can last several months until hormone balance is restored.

Is stress-related hair loss reversible?

Yes. In most cases, stress-related hair loss is temporary and improves once cortisol levels stabilize and the HPA axis calms.

Can cortisol cause stress-related hair loss?

Elevated cortisol contributes directly to stress-related hair loss by increasing inflammation and pushing follicles into the shedding phase.

What is the best treatment for stress-related hair loss?

The best approach addresses the root cause—calming the stress response, supporting hormone balance, and improving deep sleep.

Frequently Asked Questions:

Can your hypothalamus cause weight gain?

Yes. The hypothalamus is the master regulator of metabolism, controlling how your body stores and burns energy through its signaling to the thyroid, adrenals, and pancreas. When the hypothalamus becomes dysregulated by chronic stress, poor sleep, inflammation, or blood sugar instability, it defends a higher weight "set point" — causing the body to hold onto fat regardless of diet or exercise. This makes hypothalamic dysfunction an upstream root cause of stubborn weight gain.


What is a weight set point and why won't mine move?

A weight set point is the body weight your hypothalamus works to defend, calibrated over time by stress, sleep, hormones, and inflammation. When you diet, the hypothalamus perceives scarcity and responds by slowing metabolism, increasing hunger hormones, and suppressing satiety signals to return you to that set point. This is why most people regain lost weight within two to five years of conventional dieting — the set point itself was never recalibrated, only temporarily overridden.


Why do I gain weight under stress even when I'm not eating more?

Chronic stress raises cortisol, which disrupts blood sugar regulation, promotes abdominal fat storage, and signals the hypothalamus that the body is under threat. In survival mode, the hypothalamus defends fat stores and slows metabolism — so weight can increase even without any change in calorie intake. The stress chemistry, not the food, is driving the weight gain, which is why stress reduction is essential to any lasting metabolic reset.


Why do I regain weight after stopping GLP-1 medications?

GLP-1 medications work peripherally on appetite and gastric signaling, but they do not address the underlying hypothalamic dysregulation that sets your defended weight. Because the hypothalamic set point is never recalibrated, the body resumes defending its original weight once the medication stops — leading to significant regain. Long-term success requires restoring hypothalamic regulation so the set point itself lowers, rather than relying on appetite suppression alone.


How long does it take to reset your metabolism?

Genuine metabolic recalibration takes a minimum of 90 days, because the hypothalamus needs consistent signals of safety and sufficiency before it will lower its defended set point. This differs from a diet, which produces temporary suppression the body quickly corrects. A 90-day reset typically moves through three phases: stabilizing stress chemistry (days 1–30), rebuilding metabolic efficiency (days 31–60), and lowering the weight set point (days 61–90).


Why does my thyroid feel slow even though my labs are "normal"?

Under chronic stress, the body converts thyroid hormone into reverse T3, which blocks active thyroid receptors and slows metabolism at the cellular level — even when standard lab values appear normal. This means you can experience genuine symptoms of slow metabolism, such as fatigue, cold intolerance, and brain fog, while your thyroid panel looks unremarkable. Addressing the upstream hypothalamic and stress signaling often improves thyroid conversion and symptoms.


Is stubborn weight gain a willpower problem?

No. Stubborn weight gain is a signaling problem, not a willpower problem. The hypothalamus governs weight through survival mechanisms that operate below conscious control — defending its set point by slowing metabolism and increasing hunger when it perceives threat. No amount of discipline can override this system; lasting change comes from restoring hypothalamic regulation through reduced stress, balanced blood sugar, restorative sleep, and targeted nutritional support.

About the Author - Deborah Maragopoulos FNP

Known as the Hormone Queen®️, I’ve made it my mission to help everyone - no matter their age - balance their hormones, and live the energy and joy their DNA and true destiny desires. See more about me my story here...

     

Last Updated: February 25, 2026

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