Warnings of an end to human sperm production have been making headlines recently, now with the added threat of shrinking penises. Is this science or sensationalism?
Directors and audiences are becoming more comfortable with male frontal nudity. But what message does it send when almost all of the penises shown aren't real?
It's a surprisingly common question. Here's what you need to know.
What we thought we knew about male development since the 1950s has now been turned on its head.
Disorders affecting penis development are among the most common birth defects seen in humans, and rates are on the rise.
We have the penis of a monogamous primate yet our body sizes suggest our ancestors slept around a lot.
Morning penile erections affect all males, even males in the womb and male children.
The best way to prevent head and neck cancers, which are more common in men, is to get the HPV vaccine. It's free for boys and girls aged 12 and 13.
It might be juvenile, but scribbling a dick and balls on a ballot paper actually requires some thought. And that in turn has meaning.
Men with Klinefelter’s syndrome are infertile, as the extra X chromosome affects the ability to produce sperm.