How often should you poop each day?

A look at how many times you should poop a day, including what is normal and abnormal, factors affecting how often you go, and when to see a doctor.

Vitamin D Does Not Help Prevent Colds

Despite past reports that Vitamin D, the sunshine vitamin, helps with upper respiratory tract infections (colds), researchers are now saying it does not help reduce how often or how severely we get colds, according to a new study in JAMA…