Atherosclerosis, or hardening of the arteries, is a condition in which plaque builds up inside the arteries. Plaque is made of cholesterol, fatty substances, cellular waste products, calcium and fibr
Bacterial Infections and Germs. Learn how germs work and what you can do to protect yourself
Germs live everywhere. You can find germs (microbes) in the air; on food, plants and animals; in soil and water — on just about every other surface, including your body.
Most germs won't h
Batten disease is a fatal, inherited disorder of the nervous system that begins in childhood. In some cases, the early signs are subtle, taking the form of personality and behavior changes, slow learn
One of the most common eyelid problems is blepharitis, or inflammation of the eyelid margin. Patients typically experience itching, burning, mild foreign-body sensation, tearing and crusting around th
Exams and Tests
When to Contact a Medical Professional
Bronchiolitis is swelling and mucus buildup in the smallest air
Bronchodilators are a type of medication that make breathing easier by relaxing the muscles in the lungs and widening the airways (bronchi).
They're often used to treat long-term
Brucellosis is an infectious disease that occurs from contact with animals carrying brucella bacteria.
Brucella can infect cattle, goats, camels, dogs, and pigs. The bacteria can spr
Bruxism is the medical term for grinding the teeth and clenching the jaw.
People sometimes grind their teeth without it causing any symptoms or problems. But regular,
Bulimia is an eating disorder in which a person has regular episodes of eating a very large amount of food (bingeing) during which the person feels a loss of control over eating. The person then uses