White T-shirts get a lot of attention, but let’s not forget their equally versatile counterpart: the exceedingly wearable, deceptively simple black T-shirt. It’s a staple you can wear to work ...

Black poop, or melena, can happen when there is bleeding in the upper digestive tract, such as the stomach or esophagus. As the blood moves through the intestines, it turns dark, making stool appear ...

A fish allergy, as opposed to a shellfish allergy, is one in which your immune system reacts abnormally to a finned fish such as tuna, halibut, or salmon. It is a somewhat less common form of food ...