Reference Article

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Testosterone

Testosterone is a steroid hormone from the androgen group.

Testosterone is secreted in the testes of men and the ovaries of women.

It is the principal male sex hormone and the "original" anabolic steroid.

Note: This article excerpts material from the Wikipedia article "Testosterone", which is released under the GNU Free Documentation License.

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last updated on 2014-12-20 at 8:07 am EST

Male Menopause? Blame It on Low Estrogen

Male Menopause? Blame It on Low Estrogen

AP (Sep. 11, 2013) New research says estrogen, not just testosterone, affects body fat and sex drive in men. The study, appearing in the New England Journal of Medicine gives the first evidence that too little estrogen can cause certain "male menopause" symptoms.
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Men With Smaller Testicles 'Likely Better Dads'

Men With Smaller Testicles 'Likely Better Dads'

Newsy (Sep. 10, 2013) A new study out of Emory University in Atlanta shows men with smaller testicles and less testosterone are more likely to be more involved dads.
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Study: Testosterone Might Make Men More Likely to Get Flu

Study: Testosterone Might Make Men More Likely to Get Flu

Newsy (Dec. 23, 2013) Researchers at Stanford University now say men with higher levels of testosterone produce lower numbers of antibodies in response to the flu vaccine.
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Dads-To-Be Also Experience Hormone Changes During Pregnancy

Dads-To-Be Also Experience Hormone Changes During Pregnancy

Newsy (Dec. 18, 2014) A study from University of Michigan researchers found that expectant fathers see a decrease in testosterone as the baby's birth draws near. Video provided by Newsy
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