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DHEA (dehydroepiandrosterone) is often called the “youth hormone”. DHEA is the most abundant hormone precursor in the human body. And a source of your sex hormones.
DHEA is the most common natural steroid found in human blood plasma. But decreases by about 80% between ages 25 and 75.[i]
DHEA deficiency is suspected in many age-related health issues. Including declines in brain and nervous system function. The latest research shows that DHEA supplementation can have powerful neuroprotective effects.
If you are feeling tired and overwhelmed, have low sex drive, or regularly suffer with depression or poor mood, there’s a good chance your body is not producing enough DHEA.
For more on how testosterone and estrogen affects your brain, see my article: Sex Hormones and Your Brain
DHEA helps:
- Brain Energy. DHEA helps to enhance neuron utilization of ATP. The primary energy source of brain cell mitochondria. Keeping brain cell ATP levels optimized helps prevent age-related cognitive decline.
- Neurotransmitters. DHEA levels are directly associated with neurotransmitters involved in concentration, working memory, and executive function.
- Mood. DHEA supplementation can improve mood and energy while alleviating depression. And has been found to influence gene expression in the brain. It modulates the expression of genes directly involved in appetite, energy utilization and alertness.
Overview
DHEA (dehydroepiandrosterone) is the most abundant natural steroid hormone in your body. It’s sometimes called the “youth hormone”. And is a source of your sex hormones.
DHEA is naturally synthesized in your testes, adrenal glands, and brain. It’s a precursor to DHT and testosterone in men, and estrogen in women. And can activate both androgen and estrogen receptors.
Besides making DHEA, your adrenal glands also produce cortisol. Which is in direct competition with DHEA for production. When cortisol is high, especially for prolonged periods of time, your adrenal glands wear out. And DHEA production will decline.
DHEA can be made in the lab from wild yam and soy. But your body cannot produce DHEA from eating these foods. To boost DHEA you need to take it as a supplement.[ii]
DHEA Declines with Age
Your body’s natural production of DHEA varies with age. Low levels are produced before puberty. With peak production in your 20’s.
Between ages 25-30 to 75 your DHEA levels will drop by 80%. Affecting everything from alertness, memory, recall, and mood to sex drive. Its decline is even implicated in some neurodegenerative diseases.
The age-related variation in DHEA production has led scientists to believe that DHEA could be linked to the aging-process itself.
Many athletes use DHEA to increase muscle mass, strength and energy. But DHEA use is banned in the U.S. by the National Collegiate Athletic Association (NCAA). It’s also considered a “banned substance” by the NBA, NFL, and United States Olympic Committee.
In Canada, DHEA is considered a ‘drug’ and is only available by prescription. Which says something about the power of DHEA. It’s technically a steroid, which may be why it’s included in with Performance Enhancing Drugs (PEDs).
In 2007, the U.S. Congress tried to re-classify DHEA as an “anabolic steroid drug”. Which means this natural human hormone would have only been available as a prescription drug. Fortunately, this legislation never passed and you can still buy DHEA as an OTC supplement in the U.S..
Here we’re talking about how DHEA affects your brain health and chemistry.
How does DHEA Work in the Brain?
DHEA boosts brain health and function in several ways. But two in particular stand out.
- DHEA boosts working memory. Research has shown that higher DHEA levels are directly related to concentration, working memory and executive function (decision-making).
A study done in Australia in 2003 and 2004 worked with 295 women aged 21 – 77 years. The researchers set out to investigate whether circulating levels of DHEAS (dehydroepiandrosterone sulfate) contributed to cognitive function.
The women in the study went through a comprehensive battery of tests for cognitive function, and DHEAS levels. The researchers concluded that, “Higher endogenous DHEAS levels are independently and favorably associated with executive function, concentration, and working memory.”[iii]
Note: DHEAS is simply DHEA that is produced with the addition of a sulfate group. Naturally produced in your body, it produces the hormone estrone. DHEAS can be back-converted in the body to DHEA and both are often simply referred to as DHEA.
- DHEA enhances mood – naturally. DHEA has been found to improve both mood and energy while alleviating depression.
DHEA may be a good natural alternative to traditional antidepressants. A double-blind, randomized, placebo-controlled study was done at the U.S. National Institutes of Health with 46 men and women. The study subjects had been diagnosed with major or minor depression.
The depressed patients went through 6 weeks of DHEA therapy. 90 mg per day for 3 weeks and 450 mg per day for 3 weeks, and 6 weeks of placebo. They were then tested using two different Depression Rating scales, and for sexual function.
The study found that DHEA offered a significant improvement in depression symptoms. And major improvements in sexual function.
In a very rare admission from the conservative National Institutes of Health, “We find DHEA to be an effective treatment for midlife-onset major and minor depression.”[iv]
How things go bad
As we get older, our brain chemistry and energy metabolism changes.
↓ Concentration, working memory and executive function decline
↓ Neuron receptors degenerate
↓ Adrenals wear out and DHEA levels decline
↓ Appetite regulation, energy and alertness decline
All of these age-related changes are influenced by declining DHEA levels. And are contributing factors to neurodegenerative diseases and depression.
DHEA levels are an inevitable consequence of aging. And can contribute to the onset of degenerative disease.
DHEA benefits
The latest scientific research validates what we know of DHEA’s anti-aging effects. And it’s not just for athletes. DHEA’s neuroprotective benefits are vital to memory and improving mood.
DHEA supports cardiovascular health and activates genes that prevent cardiovascular health problems, diabetes and obesity. It boosts quality of life and sexual function. It even improves the appearance of younger-looking skin.
DHEA supplementation can enhance cognitive function and memory, and improve decision-making (executive function). It’s even been shown to decrease brain cell death, and promote general cerebral health.[v]
How does DHEA feel?
You should experience a noticeable increase in motivation and drive soon after supplementing with DHEA. Especially if your levels are low.
If you are under constant stress, have chronic fatigue, feel weak, depressed or have a low sex drive – find a Naturopathic practitioner. And have your DHEA levels checked.
Too many neurohackers suffer unnecessarily from high stress and low DHEA production. Don’t be one of those people.
DHEA Clinical Research
DHEA is a steroid hormone and has a strong influence on both brain structure and function. Social and physical stress has severe negative effects in your hippocampus. Affecting memory and orientation.
DHEA seems to have a neuroprotective role in reducing the toxic effects of glutamate and cortisol elevated by stress. Studies show low DHEA levels in people suffering from major depression. And that if cortisol and DHEA are out of balance it will delay recovery from these diseases.
DHEA plays a role in the treatment of depression. Whether its caused by stress or aging. It affects both the cellular structure of the brain and its function.[vi]
DHEA Levels Predict How Long You’ll Live
Scientists in Japan set out to determine if DHEA levels could predict longevity. The study included 948 men and women aged 21 – 88 years. The researchers measured DHEAS levels at the beginning of the study. And periodically for the next 27 years.
DHEAS levels were higher in the men than women as expected. DHEA levels were measured along with blood pressure, and blood sugar. Of the three health measures, DHEAS levels in men were the strongest predictor of longevity.
It doesn’t matter what your age, blood pressure or blood sugar levels.[vii] This 27-year study concluded that DHEAS levels could be a way to predict how long you’ll live.
DHEA Improves Memory
Studies in rodents showed DHEA improved cognition. But there were inconsistent findings in humans tying cognition to DHEA supplementation. So scientists at the University of Newcastle upon Tyne in the U.K. decided to find out for themselves.
In this double-blind study, 24 healthy young men were treated with 150 mg per day of DHEA for 7-days. Mood, memory and the stress hormone cortisol were measured. Including scanning their brains to identify brain regions involved in cognition.
The study results showed a reduction in evening cortisol concentrations. And improved memory and mood. Recall significantly improved. And the researchers concluded this study was the first to show that DHEA had a beneficial effect on memory in healthy young men.[viii]
DHEA Levels Associated with Mood in Pro Golfers
Several studies suggest that DHEAS levels drop following different types of acute stress. Implicating DHEA’s role in coping with stress and recovering from stress.
Researchers in Taiwan wanted to find out what happened to DHEA levels during a negative outcome in an athletic competition. In this case, they studied 14 elite golfers participating in a major national golf tournament.
The golfers were divided into 2 groups. One group made the cut during the competition. And the other group did not make the cut. DHEAS levels were measured in both groups 1-day before the competition. And then on days 1, 3 and 5 after the players’ final competition.
Study results showed that DHEAS levels in players that made the cut during the competition did not change. Those players that failed to make the cut experienced a drop in blood concentrations of DHEAS.
This study suggests that DHEA plays a role in your coping mechanism during psychologically challenging times. Supplementing with DHEA during times of stress could help alleviate some of the symptoms normally associated with high stress levels.[ix]
DHEA recommended dosage
Recommended dosage of DHEA is 25 – 50 mg per day.
DHEA is a strong steroid hormone. And low supplemental doses affect gene expression in inhibiting metabolic syndrome. DHEA supplementation boosts bone strength and enhances cognition and memory.
DHEA supplementation is not recommended for anyone under 18 years old. And like many nootropics, too much DHEA is NOT a good thing. It can lead to problems.
Many nootropics users and doctors recommend taking “hormone holidays”. In other words, use DHEA for a month then take a month off.
Supplementing with DHEA beyond the normal range may be advisable for short periods of time. Such as restoring a badly depleted adrenal system. But maintaining large doses of DHEA can lead to unpleasant side effects.
Note: If you have been diagnosed with a hormone-dependent cancer, you should not supplement with DHEA until your cancer has been cured.
DHEA Side Effects
Testing for DHEA levels is very important if you’re planning on supplementing with this powerful compound. Because if your hormone levels are normal and you start taking DHEA, you could experience side effects like acne, hair loss, tumor formation, heart arrhythmia, and insomnia.
At higher than 100 mg doses, DHEA has been linked to side effects. Many experts caution against high-doses of DHEA. Or long-term usage.
Type of DHEA to buy
The most common form of DHEA is in capsule form. Supplement manufacturers offer capsules ranging from 10 – 100 mg. You can even get DHEA as an ointment, lozenge or cream.
Keep in mind that a 25 mg DHEA capsule will not deliver 25 mg of DHEA to your system. It first must pass through your liver where it’s further broken down.
Your body is not used to getting hormones through your digestive system. Once swallowed, only 10-15 percent will eventually reach the tissues you are targeting – like your brain.
This is why many Naturopathic practitioners suggest using a DHEA cream instead. But here again you have a problem. While more DHEA is bioavailable by using DHEA cream on your skin, some argue there’s even a better way to take DHEA.
And that’s by applying the cream to the membranes of your vagina if you are a woman. And in your rectum if you are a man.
One other option is to take DHEA sublingually. It makes logical sense that if taken under your tongue, DHEA bypasses your liver. And goes directly into your bloodstream.
Personally, I use 25 mg of DHEA in capsule form in the morning, and another 25 mg at noon. And have experienced a considerable boost in energy during the day. But cycling one month on, and a one-month off to give my body a “hormone holiday”.
Nootropics Expert Recommendation
DHEA 25 – 50 mg per day
I recommend using DHEA as a nootropic supplement. But with a huge caveat.
Get your DHEA levels checked before starting supplementation to be on the safe side.
Your body does make some DHEA on its own. But DHEA production inevitably declines with age. And possibly even faster depending on the health of your adrenal glands.
If you are under constant stress, have chronic fatigue, feel weak, depressed or have a low sex drive – find a Naturopathic practitioner. And have your DHEA levels checked.
Too many neurohackers suffer unnecessarily from high stress and low DHEA production. Don’t be one of those people.
Maintaining optimal DHEA levels can enhance cognitive function and memory, and improve decision-making (executive function). It’s even been shown to prevent brain cell death, and boost general cerebral health.
Start with 25 mg of DHEA per day. And see how you feel. Increase the dose to no more than 50 mg per day. And watch for side effects. And don’t forget to cycle it. Take it for a month and take one month off.
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Join The Discussion - 111 comments
M
May 13, 2022
HELLO DAVID! I am taking two capsule of DHEA 25mg , one in the morning & another in afternoon . Do I have to take dim supplements every time I take DHEA supplement or once in a day is fine? Thanks
David Tomen
May 15, 2022
M, once per day should be fine.
Dawn
May 1, 2022
an addendum to the previous question:
My bloodwork showed no estrogen left at all in my system.
My oncologist wants me to take an aromatase inhibitor, which I won’t because of the side effects, and only 50% effective. There are natural products that do the same thing without the danger.
My bloodwork shows I still do have some DHEA left in my system, but I’ve been off it for six months now.
Dawn
May 1, 2022
I am the youngest 69-Year-old woman ever – I front a blues Rock Band, dancing, full of energy. NO ONE ever guesses me for my age – no plastic surgery, no expensive “beauty” regimes, mainly soap & water, haha – Most people think I’m somewhere in my 30’s. I began taking BHRT when I went through menopause at 50-ish. Also, my functional physician had me take 25 mg. DHEA. Last fall I got breast cancer in both breasts (I had radiation to the area in large doses as an infant) I was told by my cancer experts that it was estrogen and progesterone receptor cancer, and I should immediately stop taking my BHRT. My BHRT was the estrogens, progesterone, testosterone, and one starting with a D, I think DHEA. Also, I was to stop the supplemental DHEA since that would boost estrogen, feeding cancer. I was also told DIM would do the same thing – but that is not true and I continue to take that. I read that a small amount of DHEA in a vaginal cream would not affect the body’s estrogen. I’m also wondering if the 7-Keto-DHEA would have an application for me? My brain fog, hot flashes, and lack of energy have returned with a vengeance. It is Not from cancer treatment as I am using the surgery and a nutrition and supplementation protocol in lieu of chemo and radiation, etc. Any suggestions for me? I’d appreciate it greatly! I’m not ready for this life of mine to be over !!
Thank you.
David Tomen
May 2, 2022
Dawn, your “brain fog, hot flashes, and lack of energy have returned with a vengeance” because you stopped hormone replacement therapy. I realize you hate to hear it but you have testosterone and estrogen receptors in your brain. EVERYTHING depends on adequate amounts of those hormone to attach to those receptors.
Dopamine, acetylcholine, serotonin and GABA ALL depend on these hormones to do their job. You can have the best nootropic stack on the planet and it will not provide the benefits you expect with inadequate levels of testosterone and estrogen.
7-Keto-DHEA is produced from DHEA and does not increase testosterone or estrogen. DHEA on the other hand does help produce testosterone and some of that is turned into estrogen. Not a very ‘scientific’ explanation but I hope it gets the idea across. Using 7-Keto-DHEA is unlikely going to help with brain fog, hot flashes or energy.
DIM prevents testosterone from turning into estrogen. It works just like Arimidex.
Angelina
April 28, 2022
Hello David, I beg your help, I suffer from chronic fatigue, and I am very depressed, I am from Uruguay and I am 30 years old, I take a good stack just like yours and nothing has worked, but I still need to try DHEA, which is my Last hope, but in my country no doctor does tests to measure it, and I don’t know any Naturopathic practitioner. Do you think it is safe to take 25 mg for a month to see if it helps me or can I suffer from hair loss, tumor formation and heart arrhythmia?
David Tomen
April 30, 2022
Angelina, 25 mg DHEA is safe. If it worries you try using it 5 days and take two days offer before starting it again.
But have you checked your thyroid hormone levels? Because chronic fatigue and depression can be signs of a malfunctioning thyroid.
See my review of Iodine here: https://nootropicsexpert.com/iodine/. And do some reading on this website as well: https://stopthethyroidmadness.com/recommended-labwork/
Gary Smith
April 18, 2022
Hi David, I started working with a functional MD. Today she suggested I try DHEA and pregnenalone to raise testosterone based on both saliva and blood tests. She said they are precursors to testosterone.
I had two shots of testosterone from my urologist a few months back. Kind of made my insomnia worse and never noticed any real positive changes. Have you heard of using both DHEA and pregnenalone for these purposes? Thanks!
David Tomen
April 19, 2022
Gary, Pregnenolone is converted into progesterone which through another process goes on to produce testosterone and estrone.
DHEA is a precursor to DHT and then testosterone. Both can be used a nootropics for supporting brain health and raising testosterone levels. It’s not as efficient as injected testosterone.
Robert
March 14, 2022
Can you make a post that explains how to optimize testosterone for brain health ? TY Mr Tomen
David Tomen
March 14, 2022
Robert, I am working on an articled about how sex hormones affect brain function. So please stay tuned…
giorgio
September 25, 2021
Hello There,
i am Giorgio from Italy,
First off thanks for sharing. I am 35 and I do sport regularly, I took dhea 25 mg for 4 months years ago because my doctor suggested it to me and I felt great, phisically and mentally speaking and then I stopped. After a year of no taking any dhea I checked my dhea-s level, it was 128 range 124 – 480, free testosterone was 10 range 1 -28. I started to feel scared cos I didn’t like those levels, especially for my age and the lifestily I have those levels I guees aren’t normal. So I decided to take 25 mg and my dhea-s level went up to 248, and my F testosterone went up to 15. I was happier, I decided to get 50 mg Because I think those levels aren’t exellent yet, My question is : to be sure nothing gets wrong, exactly what test Do I have to take?
Dhea-s
free testosterone
astradiol
dht
tha’s it? or do you suggest more?
Do you think I have room to go up with no side effect or I must pay attention?
What if estradiol goes a bit up but remain on range? is it good or I have to stop dhea supplemantion?
Thanks a lot
Regards
David Tomen
September 26, 2021
Giorgio, as long as you stay within the bell curve on those tests you are on the right track. After that it depends on how you feel more so than labs.
Those are the essential labs that you have listed. You can use DIM which should help keep your estradiol levels under control.
Levi
July 11, 2021
Mr. Tomen,
I am a 47 yearold male who underwent a liver transplant due to autoimmune disease. As you can imagine from all the Prednisone before & after the transplant I am adrenally insufficient and on Hydrocortisone, 10mg ED. At this point we are not even trying to let my adrenals wake up because of the constant use of glucocorticosteroids systemically & locally into joints as well as needing constant nerve blocks. I am also on TRT. My question is if one takes exogenous DHEA will the adrenals stop producing all DHEA just like when you do a testosterone cycle, stop & produce none until the testis wake up. As you suggest cycling monthly on & off DHEA will one feel horrible on the month off?
David Tomen
July 12, 2021
Levi, in your case I think you can assume that your adrenals are not going to “wake up”. Mine certainly haven’t. I used Hydrocortisone for a couple of years but gradually weaned myself of and now use Solaray Adrenal Caps (https://amzn.to/3yISY7wZ) which I must dose 3 – 4-times per day.
And given your issues I do not think it a good idea to “cycle” DHEA. There is no reason to feel horrible because of the hope that your Adrenals will recover some day.