Many people think of erection problems as a condition that only affects older men. But you don’t have to look far to find reports of the condition among men in their 20s and 30s. Some research even ...

In 1998 when the Food and Drug Administration approved Viagra, pundits giddily predicted that older men would gobble the little blue pill like candy. Analysts forecast sales of at least $5 billion a ...

Viagra lasts for about four hours, but it can last longer in some people. Viagra should be taken 30 minutes to an hour before sexual activity. Older age or certain drugs can make Viagra stay in your ...

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...

Testosterone plays a key role in erections by working on several parts of penile function. It helps grow the smooth muscle cells in the spongy erectile tissue (called trabecular smooth muscle). This ...