hormones

Joanna Harper’s work has catapulted her into a century-long debate about who gets to play women’s sports.

It’s hard to know exactly how much the hormone affects any given body, but what we do know suggests it’s not the end-all be-all.

The debate over hormone testing has some new evidence to complicate things.

It's about more than just nutritional advice.

Your skeleton does a whole lot more than just hold you up.

Sunscreen is full of chemicals, but is making your own a safer option?

A significant overlap might exist between the two distinct variations of the disease.

Fright in the flesh.

Birth control pills affect all women differently—including how well they work.

When you give a mouse a zit...