Alcohol slows down brain activity. Because alcohol affects alertness, judgment, coordination, and reaction time--drinking increases the risk of falls and accidents. Some research has shown that it takes less alcohol to affect older people than younger ones. Over time, heavy drinking permanently damages the brain and central nervous system, as well as the liver, heart, kidneys, and stomach. Alcohol’s effects can make some medical problems hard to diagnose. For example, alcohol causes changes in the heart and blood vessels that can dull pain that might be a warning sign of a heart attack. It also can cause forgetfulness and confusion, which can seem like Alzheimer’s disease.
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