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Penis size and testosterone

The relationship between penis size, testosterone levels, and factors such as genetics, obesity, and age.

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Jan 16, 2026
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What factors like age or health affect erect penis size?

Erect penis size is driven primarily by events during development—genes and hormones shape adult dimensions—while age, health and situational factors alter the firmness or apparent length of an erecti...

Jan 19, 2026

erectile dysfunction

Erectile dysfunction (ED) is a common, often treatable medical condition defined by the recurrent inability to achieve or maintain an erection sufficient for satisfactory sexual activity, and it frequ...