Peter Attia· MD
when testosterone is low the feedback cycle to the brain ultimately is to ramp up the secretion of lh and fsh conversely when testosterone is high the signal that is sent back is to inhibit the production of these things
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
when testosterone is low the feedback cycle to the brain ultimately is to ramp up the secretion of lh and fsh conversely when testosterone is high the signal that is sent back is to inhibit the production of these things
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the hypothalamus in response to low testosterone will secrete gonadotropin releasing hormone it secretes that to another part of the endocrine system called the pituitary gland which is divided into two pieces an anterior and a posterior so in the anterior pituitary gland in response to gonadotropin releasing hormone two other hormones are released and these are hormones that most people might even be familiar with because you'll see them on the blood test one is called lh or luteinizing hormone the other is called fsh or follicle stimulating hormone