We don't know the exact cause of endometriosis. Right now, a number of theories try to explain the disease.

Hypoplastic left heart syndrome (HLHS) is a problem with the heart's structure that is present at birth (congenital).

Spina bifida (SB) is a neural tube defect (a disorder involving incomplete development of the brain, spinal cord, and/or their protective co...

Is Down syndrome a rare genetic disorder?

An overview and discussion of febrile seizures, childhood seizures provoked by fevers.

Understand the role of genetics (heredity) in epilepsy.

Nine million American children suffer from the chronic respiratory condition known as childhood-onset asthma. If yours is among them, you'll...

After a stroke, things change. Because 700,000 new strokes occur every year in America, knowing what may follow is invaluable to a stroke vi...

Sixty million Americans will develop epilepsy during their lifetimes. Let's look at why.

GAD, or generalized anxiety disorder, is a panic disorder that can create intense stress on a day-to-day basis. In this mental health video,...