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Index/Topics/Testosterone

Testosterone

A hormone that plays a key role in male sexual health

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2 results
Jan 15, 2026
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At what age is penis growth typically complete and what are normal size ranges?

Penile growth occurs mainly during puberty and is highly variable: most growth happens between early adolescence and the late teen years, with many authoritative sources saying growth is largely finis...

Feb 6, 2026

Can erectile dysfunction treatments reliably shorten the refractory period in older men according to randomized trials?

Randomized-trial evidence does not establish that erectile dysfunction () treatments reliably shorten the post‑ejaculatory refractory period in older men; the clearest randomized signal comes from a s...