Medically reviewed by Laura Young Up to 90% of people who menstruate experience physical, emotional, and behavioral changes during their period and in the days leading up to it. Premenstrual physical ...

Medically reviewed by Laura Young Up to 91% of people who get periods experience period cramps. Many also report experiencing ...

Acute diarrhea, or the kind that comes on quickly and lasts up to a few days, is usually contagious. Common causes of contagious diarrhea include viruses, bacteria, and parasites. Diarrhea is ...