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Nightmares and Night Terrors What are night terrors? A night terror is a partial waking from sleep with behaviors such as screaming, kicking, panic, sleep walking, thrashing, or mumbling. They are harmless, and each episode will end in deep sleep. They tend to occur in children

Anatomy and Function of the Heart Valves What are heart valves? The heart has four chambers: two upper chambers (atria) and two lower chambers (ventricles). Blood passes through a valve before leaving each chamber of the heart. The valves prevent the backward flow of blood

Newborn Screening Tests What are newborn screening tests? The United States has a national program of newborn screening tests. These check for health disorders that can be treated if they're found very early in life. If the screening test results are abnormal, it means more tests

Breast Pain (Mastalgia) What is mastalgia? Mastalgia is breast pain. There are 2 main types of mastalgia: Cyclical breast pain. The pain is linked to menstrual periods. Noncyclic breast pain. The pain may come from the breast. Or it may come from somewhere else, such as nearby

Middle Ear Infection (Otitis Media) in Adults What is a middle ear infection? A middle ear infection occurs behind the eardrum. It's most often caused by a virus or bacteria. Most kids have at least one middle ear infection by the time they are 3 years old. Adults can also get

Preventing Obesity in Children, Teens, and Adults Facts about obesity Obesity is a long-term (chronic) health condition that can affect people at any age, including children, teens, and adults. It develops over time and is influenced by more than just day-to-day choices. Body

Monoclonal Gammopathies What are monoclonal gammopathies? Monoclonal gammopathies are conditions in which abnormal proteins (antibodies) are found in the blood. These proteins are made from a small number of plasma cells in the bone marrow. The most common condition linked with

Generalized Anxiety Disorder in Children, Adolescents and Teens What is generalized anxiety disorder? Generalized anxiety disorder (GAD) is defined as chronic, excessive worry and fear that seems to have no real cause. Children or adolescents with generalized anxiety disorder

Asthma and Exercise Asthma is a long-term (chronic) condition causing swelling and narrowing of the airways. The muscles around the airways tighten, the lining of the airways swells, and extra mucus is produced. These changes make it harder to breathe. Triggers are things that

Reducing Your Health Risks with Vaccines Vaccines are one of the best ways to reduce your risk of certain major illnesses called infectious diseases. Avoiding certain infectious diseases or their complications will help to keep you healthier so you can continue be active in life