Health Information Library

A condition in which the immune system mistakenly creates antibodies that attack tissues in the body.

A neck injury that can happen when the head suddenly moves backward and then forward.

Narrowing of the valve between the lower left heart chamber and the body's main artery.

A complex condition in which several post-concussion symptoms last for weeks or months.

A sudden, unexpected tightening of one or more muscles, often in the legs. A charley horse is another name for a muscle cramp.

An injury that occurs when one of the bones in the rib cage cracks.

A disease that disrupts the replacement of old bone tissue with new bone tissue.

An inherited disorder that affects connective tissue.

A mental health condition that causes extreme mood swings, including emotional highs (mania or hypomania) and lows (depression).

A mental health condition that causes mood swings, including emotional highs called hypomania and lows called depression.

Thickening of the walls of the lower left heart chamber, called the left ventricle.

Symptoms that happen when stomach contents move into the small bowel before being digested.

A cancer of plasma cells.

A group of eye diseases in which the light sensing tissue at the back of the eye, called the retina, is damaged.

The buildup of fats, cholesterol and other substances in and on the artery walls.

Infrequent bowel movements, and small, hard-to-pass, stool.

The permanent end of fertility, signaled by 12 months since last period.

Menopause that happens before age 40 caused by chemotherapy or surgical removal of the ovaries./p>

A disease in which the immune system breaks down the protective coating of nerve fibers in the brain and spinal cord, called the myelin sheath.

An enlarged liver.