4 doctors weighed in:
What causes testosterone to decrease?
4 doctors weighed in

Dr. Gurmukh Singh
Pathology
2 doctors agree
In brief: Aging
There is a natural decline in testosterone production with aging in men, not unlike decline in estrogen Progesterone in women at menopause.
Alcohol, some drugs and some genetic disorders also lower testosterone production.

In brief: Aging
There is a natural decline in testosterone production with aging in men, not unlike decline in estrogen Progesterone in women at menopause.
Alcohol, some drugs and some genetic disorders also lower testosterone production.
Dr. Gurmukh Singh
Dr. Gurmukh Singh
Thank
Dr. Michael Sinclair
Family Medicine
In brief: Low LH
We don't know why, but your brain seems to get satisfied with less and less testosterone over time, so it lowers the output of leutenizing hormone (lh) which is what tells the testicles to make testosterone.
Increasing the signal to the testicles fixes the problem, but nobody knows why it happens. My guess is it has to do with evolution, older men may not make as many perfect babies.

In brief: Low LH
We don't know why, but your brain seems to get satisfied with less and less testosterone over time, so it lowers the output of leutenizing hormone (lh) which is what tells the testicles to make testosterone.
Increasing the signal to the testicles fixes the problem, but nobody knows why it happens. My guess is it has to do with evolution, older men may not make as many perfect babies.
Dr. Michael Sinclair
Dr. Michael Sinclair
Thank
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