Step-By-Step Guides

Emphysema

WHAT IS IT? Emphysema gradually damages the air sacs in your lungs, making you progressively shorter of breath. It’s one...

Eczema (atopic dermatitis)

WHAT IS IT? Eczema is a condition that makes your skin red and itchy. It’s common in children but can...

Dry Skin

WHAT’S THE CAUSE? Dry skin can occur for a variety of reasons. Most commonly, it’s the result of dry air,...

Dizziness

WHAT IS IT?The term dizziness is used to describe everything from feeling faint or lightheaded to feeling weak or unsteady....

Diverticulitis

WHAT IS IT? It’s not uncommon for small, bulging pouches (diverticula) to form in the lining of your digestive tract....

Diarrhea
Diarrhea

Viruses. Viruses that can cause diarrhea include Norwalk virus, cytomegalovirus, and viral hepatitis. Rotavirus is a common cause of acute childhood...

Diabetes

WHAT IS IT? Diabetes mellitus refers to a group of diseases that affect how your body uses blood sugar (glucose)....

Depression

WHAT IS IT?Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest. More than...