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Sunburn What is sunburn? Sunburn is a red, painful skin reaction that occurs after too much exposure to ultraviolet (UV) light. UV light is a type of radiation in sunlight. The symptoms of a sunburn most often appear a few hours after sun exposure. They are often worst at 6 to 36

Maintaining Weight Loss Benefits of maintaining weight loss Losing weight is hard for many people. But it's even more challenging to keep the weight off. Many people who lose a large amount of weight have problems keeping it off over time. One theory is that people who eat fewer

Coronary Heart Disease What is coronary heart disease? Coronary heart disease happens when the innermost layer of the coronary arteries becomes inflamed and narrowed. This is caused by a buildup of fatty deposits called plaque. These deposits may start in childhood and continue

Major Depression in Adolescents and Teens What is major depression? Major depression, also known as clinical depression or unipolar depression, is classified as a type of affective disorder (also called mood disorder) that goes beyond the day's ordinary ups and downs, and has

22q11.2 Deletion Syndrome in Children What is 22q11.2 deletion syndrome in children? The 22q11.2 deletion syndrome (22q11.2DS) is a genetic disorder. In children with this syndrome, a tiny piece of chromosome 22 is missing. This can cause many health problems. These problems may

Ureterocele and Ureteral Duplication in Children What is a ureterocele and ureteral duplication in children? A ureterocele is a problem with a ureter. The ureter is a tube that connects the kidney to the bladder. There is 1 ureter for each kidney. The ureters send urine from the

Lymphadenopathy in Children What is lymphadenopathy in children? Lymphadenopathy means swelling of the lymph nodes or glands. These are the bean-shaped glands in the neck, armpits, groin, chest, and abdomen. These glands act as filters for lymphatic fluid. This fluid contains

Prematurity What is prematurity? A baby born before 37 weeks of pregnancy is considered premature or born too early. Other terms used for prematurity are preterm and the nicknames "preemie" or "premie". About 1 in every 10 infants are born prematurely. Twins and other multiples

Tuberculosis (TB) in Children What is tuberculosis in children? Tuberculosis (TB) is an ongoing (chronic) infection caused by bacteria. It usually infects the lungs. But other organs such as the kidneys, spine, or brain may be affected. TB is most often spread through droplets

Pulmonary Atresia What is pulmonary atresia? Pulmonary atresia (PA) is a heart defect. It happens when the baby's heart doesn’t form as it should in the uterus. This can happen during the first 8 weeks of pregnancy. PA is a problem with the opening of the pulmonary valve. This