This hormone is the #1 cause of low T (not age)
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Story-At-a-Glance
Hey, Matt Cook here, and many men think that lower testosterone levels are a natural part of aging…
But there’s a new study showing that what’s actually causing low T isn’t old age at all…
Instead it’s another hormone in the male body…
A hormone that can easily be balanced like this to keep T high…
—-Important Message—-
What is the 1 thing that men over 100 all eat everyday?
I spent years visiting Japan, Peru, Italy, Norway, Myanmar, and Russia to meet some of the oldest, healthiest men in the world.
And I’m writing down what all these men eat, what their daily routines are, where they work, and even how often they have intimacy with their wives.
They all just shrug their shoulders, because it all seems natural to them — they have no idea that people their age are barely walking in the States.
So after a few years, I collect a whole spreadsheet of information about these long-living men…
And it all seemed random — it seemed like there wasn’t any ONE thing that these long-living, intimacy-having men did differently from you and me…
I mean, these men are not vegetarians. They regularly eat meat, even pork.
They are not physical fitness nuts…
NONE of them work out, and NONE of them do purposeful physical exercise.
They are often smokers…
And they often have intimacy with much younger women on a daily basis!
Then it hits me… there’s 1 thing that ALL of these men are eating every day…
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The 1 hormone causing low T
These days most older men suffer from low testosterone and high cortisol.
It looks like low energy, low drive, poor rockiness, abdominal obesity, depression, and lack of alpha-male energy.
More men are becoming aware of the importance of testosterone – but high cortisol is still a hidden problem for many.
High cortisol usually accompanies low testosterone…
…and research shows that high cortisol may be the cause of low testosterone in many men.
This is one of the reasons why I focus just as much on cortisol as I do on testosterone – even producing newsletters on cortisol alone.
The human research was published in The Journal of Clinical Endocrinology & Metabolism.
The study looked at the effect of adrenocorticotropic hormone and cortisol-like treatments on testosterone levels.
“The effect of acute activation of the ACTH-adrenal axis on circulating testosterone levels was investigated.”
Adrenocorticotropic hormone (ACTH) is produced by the pituitary gland.
Its main function is to stimulate the production and release of cortisol from the adrenal glands.
The researchers used a couple of different methods to increase cortisol.
In one method, men were given too much insulin. This drives down blood sugar.
The body responds by increasing cortisol.
This is because cortisol is used to break down the body’s tissue for emergency blood sugar.
This is one of the reasons why I do not recommend fasting – it is a surefire way to cause your cortisol levels to skyrocket.
This is basic biology which is completely overlooked by many of the proponents of current dietary fads.
The other method used to look at the effects of cortisol was to give men hydrocortisone.
Both methods of increasing cortisol were effective at rapidly dropping testosterone levels.
“Elevation of circulating cortisol resulting from insulin-induced hypoglycemia or the administration of hydrocortisone was followed by a rapid decrease in serum testosterone levels.”
This shows quite clearly that cortisol can be a cause of low testosterone.
The researchers looked at a number of other hormones which can affect testosterone and which are often related to cortisol levels.
But neither of these hormones seem to play a role in the short-term drop in testosterone.
“This effect was seen without accompanying changes in luteinising hormone or prolactin.”
In men, luteinising hormone stimulates cells in the testes to produce testosterone.
Prolactin can cause low testosterone and the growth of man-boobs.
But neither were at work here – at least in the short-term.
Elevated cortisol is enough to cause low testosterone.
Cortisol decreases testosterone by a direct effect on the testicles.
“These findings suggest that hypercortisolism of endogenous or exogenous sources suppresses testosterone secretion by a direct action on the testis.”
Cortisol is a stress hormone.
Psychological stress, heat stress, lack of sleep, lack of light, going too long without food…
All of these things will reliably increase cortisol and have a corresponding decrease in testosterone.
Some research in our closest animal relatives shows that (lower) cortisol levels are even more predictive of alpha status than (higher) testosterone.
The top-ranking males have lower stress. In animals this is more or less luck of the draw – bigger males win.
But we humans can learn how to control our stress and corresponding changes in hormone levels.
“This adrenal-testicular axis may have biological implications on the reproductive adaptation to stress.”
The research has important implications for dietary habits…
Especially for people considering crash diets, extended fasting or even carbohydrate restriction.
The body responds to carbohydrate restriction the same way as it does to starvation.
All of these tactics will reliably increase cortisol and decrease testosterone levels.
The findings are also important for men taking anti-inflammatory treatments which are cortisol analogues.
These treatments can be harmful in a dose and time-dependent manner because of their effects on testosterone.
—-Important Message About Lowering Cortisol & Raising T—-
1 bite raises T while lowering cortisol
When men have chronically high cortisol levels, they usually suffer from low drive and erections problems too.
This is because cortisol inhibits testosterone production in men.
So the more cortisol you have, the less T you have.
And that ups your risk of heart disease by a lot… not good…
But here’s the good news…
If you can naturally raise T, you can naturally lower cortisol…
Because when testosterone is being made in the body, stress hormones automatically go down — including cortisol.
And the easiest way to naturally raise testosterone is to pop this in your mouth…
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