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494 Topic Pages Found in Health
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Open Aging

Aging refers to the process of getting older. People age at different rates and in different ways, influenced by cultural, social, biological, and


Agoraphobia is an anxiety disorder that is often associated with panic disorder and can be characterized by panic symptoms, anxiety regarding

Open AIDS (Disease)
AIDS (Disease)

AIDS (acquired immunodeficiency syndrome) is a chronic, life-threatening disease that is caused by the human immunodeficiency virus (HIV). AIDS was

Open Alcohol

Drinking alcohol is both a physical and a cultural act, and alcohol functions as food and as drug. As a food, it provides calories, vitamins, and

Open Alcoholism

Worldwide, alcoholism is a leading preventable cause of morbidity and mortality. The chronic effects of alcohol overuse are destructive to bodily

Open Allergy

Allergy is an inflammatory disorder of hyperreactivity of the immune system against common environmental exposures. The prevalence of allergy is

Open Alternative medicine
Alternative medicine

Alternative medicine uses therapeutic approaches not considered part of traditional medicine, including physical treatments and spiritual and mental

Open Amnesia

Our current understanding of amnesia owes much to the study of the patient HM, who in 1953, at the age of 26, underwent bilateral removal of


Amniocentesis is the sampling of amniotic fluid surrounding a fetus. A physician anesthetizes a small area of the pregnant woman’s abdomen, inserts a

Open Amphetamines

Amphetamines are central nervous system stimulants used medically to treat narcolepsy and attention deficit hyperactivity disorder (ADHD) that are