Medically reviewed by Anju Goel, MD Key Takeaways Diarrhea is often contagious, especially when it's caused by viruses, bacteria, or parasites. Infectious diarrhea can spread by not washing hands ...

Angela, 45, admitted that she drinks coffee "all day long" ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Did you know that on average, every single adult in the United States experiences diarrhea at least once ...