Definition A burn is any injury to body tissue that can be caused by: heat steam sunlight electricity nuclear radiaton chemicals   History For centuries people have been trying to understand burns and how to heal them. The Egyptians first recorded a method...

What is bulimia? Bulimia nervosa, often called bulimia, is a type of eating disorder. Eating disorders are mental health problems that cause extreme and dangerous eating behaviors. These extreme eating behaviors cause other serious health problems and sometimes death....

General Overview Bulimia nervosa is an eating disorder in which a person eats a large amount of food in a short period of time (binging) and then forces themselves to vomit or take medication that expels the food from the body (purging). This cycle of binging and...

What Is Bronchitis? Bronchitis (bron-KI-tis) is a condition in which the bronchial tubes become inflamed. These tubes carry air to your lungs. (For more information about the bronchial tubes and airways, go to the Diseases and Conditions Index How the Lungs Work...

The initial lung damage that leads to bronchiectasis often begins in childhood. However, symptoms may not occur until months or even years after you start having repeated lung infections. In the United States, common childhood infections—such as whooping cough and...