Add Yahoo as a preferred source to see more of our stories on Google. Some people say they're 'allergic to their period.' Here's what to know about the autoimmune skin condition that causes it.

Migraines are throbbing headaches often accompanied by nausea and increased sensitivity to light, sound and touch. Nearly 30 million Americans suffer from migraines, and almost 1 in 4 of them have at ...

AUSTIN, Texas--Some women with menstrual cycle disorders like asthma and migraine headaches may be experiencing allergies to their own estrogen and progesterone hormones, Texas researchers have ...