CONOR CAFFREY / SCIENCE PHOTO LIBRARY CONOR CAFFREY / SCIENCE PHOTO LIBRARY
Alcohol consumption. Profile of a man drinking a glass of alcohol. Alcohol is an addictive substance which acts as a depressant on the nervous system, and so reduces anxiety, tension and inhibitions. Dependency on alcohol (alcoholism) is an illness which leads to withdrawal symptoms when drinking is suddenly stopped. Long term and excessive alcohol consumption may cause irreversible damage to the heart, liver, brain and nervous system.
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