A trichologist and nutritionists explain the relationship between diet and hair health – and which foods can help with ...

A single gene in the shorebird species known as ruffs controls the levels of testosterone in males, and this in turn affects ...

The female reproductive system includes internal and external organs, each designed to carry out varying functions. Learn more about the anatomy of this system.

The left just can't get enough of sex-changing children. They want them on puberty blockers, they want them on cross-sex ...