Alcohol is a drug

Initially, it causes dizziness, weakness in the muscles and loss of emotional control. With increasing intoxication, the body becomes less able to function properly, sickness, loss of consciousness and even death can occur with too much alcohol. Although a person may initially feel relaxed and happy, alcohol is a depressant (emotional, mental and physical). Alcohol is often linked to suicide, accidents causing injury or death, and criminal assaults causing injury or death. More information: http://biz.howstuffworks.com/alcohol.htm

Blood alcohol concentration

After absorption, the alcohol enters the bloodstream and dissolves in the water of the blood. The blood carries the alcohol throughout the body. The alcohol from the blood then enters and dissolves in the water inside each tissue of the body (except fat tissue, as alcohol cannot dissolve in fat). Once inside the tissues, alcohol exerts its effects on the body. The observed effects depend directly on the blood alcohol concentration (BAC), which is related to the amount of alcohol consumed. The BAC can rise significantly within 20 minutes after having a drink.

Fetal Alcohol Syndrome

For years, physicians and scientists have known that alcohol has detrimental effects on the human fetus. A new study from investigators in Berlin, Tokyo and St. Louis identifies how the damage associated with fetal alcohol syndrome might occur.
http://www.bced.gov.bc.ca/specialed/fas/

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