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Alcohol Abuse and Alcoholism Signs, Symptoms, Effects Alcohol dependence and abuse are among the most common mental disorders. The recent National Comorbidity Survey says that 23.5% of Americans may become dependent or abuse alcohol sometime in their lives. According to the American Psychiatric Association, 10 million adults and 3 million children are alcoholics. The first episode of alcohol intoxication usually occurs in the early to mid-teens and alcohol dependence usually peaks between the ages of 20 to mid-30s. Alcoholic dependence often follows family patterns. The risk is 3 to 4 times higher for someone to develop alcohol dependence if he or she has close relatives who are alcohol dependent. Five sense organs - definition of Five sense organs There are five senses: sight, smell, taste, touch, and hearing. Each of the senses consists of specialized cells that have receptors for specific stimuli. These cells have links to the nervous system and thus to the brain. Sensing is done at primitive levels in the cells and integrated into sensations in the nervous system.