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Bruxism (BRUK-siz-um) is a condition in which you grind, gnash or clench your teeth. If you have bruxism, you may unconsciously clench your teeth together during the day, or clench or grind them at night (sleep bruxism). Sleep bruxism is considered a sleep-related movement disorder. People who clench or grind their teeth (brux) during sleep Read more…

Brugada (brew-GAH-dah) syndrome is a potentially life-threatening heart rhythm disorder that is sometimes inherited. People with Brugada syndrome have an increased risk of abnormal heart rhythms from the lower chambers of the heart (ventricular arrhythmias). Many people who have Brugada syndrome don’t have any symptoms, and so they’re unaware of their condition. A telltale abnormality Read more…

Brucellosis is a bacterial infection that spreads from animals to people — most often via unpasteurized milk, cheese and other dairy products. More rarely, the bacteria that cause brucellosis can spread through the air or through direct contact with infected animals. Brucellosis symptoms may include fever, joint pain and fatigue. The infection can usually be Read more…

Bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs. People who have bronchitis often cough up thickened mucus, which can be discolored. Bronchitis may be either acute or chronic. Often developing from a cold or other respiratory infection, acute bronchitis is very common. Chronic bronchitis, Read more…

Bronchiolitis is a common lung infection in young children and infants. It causes congestion in the small airways (bronchioles) of the lung. Bronchiolitis is almost always caused by a virus. Typically, the peak time for bronchiolitis is during the winter months. Bronchiolitis starts out with symptoms similar to those of a common cold but then Read more…

A broken wrist or broken hand is a break or crack in one of the many bones within your wrist and hand. The most common of these injuries occurs in the wrist when people try to catch themselves during a fall and land hard on an outstretched hand. Risk factors for a broken wrist or Read more…

A broken toe is a common injury that most often occurs when you drop something on your foot or stub your toe. In most cases, a broken toe can be immobilized by taping it to a neighboring toe. But if the fracture is severe — particularly if it involves your big toe — you may Read more…

A broken rib, or fractured rib, is a common injury that occurs when one of the bones in your rib cage breaks or cracks. The most common cause of broken ribs is trauma to the chest, such as from a fall, motor vehicle accident or impact during contact sports. Many broken ribs are merely cracked. Read more…