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A feeling of nightmare is a dream occurring during rapid eye movement (REM) sleep that brings out strong fear, terror, distress, or extreme anxiety. Nightmares are usually in the latter part of the night and wake up the sleeper, who is able to remember the content of the dream.

AIDS was first reported in the United States in 1981 and has since become a major worldwide epidemic. AIDS is caused by the human immunodeficiency virus, or HIV.

Alcoholics develop poor eating habits and poor nutrition over many years of drinking. In chronic drinkers the ethanol depresses the appetite, displaces other foods from the diet and decreases the value of food by interfering with digestion and absorption. When the nutrients are absorbed, alcohol prevents them from being fully utilized by the body by altering their transport, metabolism and storage. Alcoholics are more prone for severe malnourishment, protein deficiency.

Kerosene is a chemical used mainly in paints, pesticides, fuel lamps and heating. Ingestion and other exposures to the chemical can cause various symptoms. The poisonous ingredient is Hydrocarbons, substances that contain only hydrogen and carbon.

Nager Syndrome is a condition which is extremely rare congenital defect with heriditary features which has only 25% of survival rates resulting from problems in the development of the first and second brachial arches. The first arches produce the nerves and muscles for chewing, the lower jaw, two of three bones in the middle ear, and a small part of the ears. The second arches produce the nerves and muscles of facial expression, one bone in the middle ear, most of the external ears, and parts of the bone above the larynx.