People drink to socialize, celebrate, and relax.Â Alcohol often has a strong effect on people â€“ and throughout history, weâ€™ve struggled to understand and manage alcoholâ€™s power.Â Why does alcohol cause us to act and feel differently?Â How much is too much? Why do some people become addicted while others do not?
Alcoholâ€™s effects vary from person to person, depending on a variety of factors, including:
While drinking alcohol is itself not necessarily a problem â€“ drinking too much can cause a range of consequences, and increase your risk for a variety of problems.
Alcohol enters your bloodstream as soon as you take your first sip. Alcoholâ€™s immediate effects can appear within about 10 minutes. As you drink, you increase your blood alcohol concentration (BAC) level, which is the amount of alcohol present in your bloodstream.Â The higher your BAC, the more impaired you become by alcoholâ€™s effects.Â These effects can include:
Other risks of drinking can include:
People who drink too much over a long period of time may experience alcoholâ€™s longer-term effects, which can include:
Drinking too much â€“ on a single occasion or over time â€“ can take a serious toll on your health.Â Hereâ€™s how alcohol can affect your body:
Alcohol interferes with the brainâ€™s communication pathways, and can affect the way the brain looks and works. These disruptions can change mood and behavior, and make it harder to think clearly and move with coordination.
Drinking a lot over a long time or too much on a single occasion can damage the heart, causing problems including:
Heavy drinking takes a toll on the liver, and can lead to a variety of problems and liver inflammations including:
Alcohol causes the pancreas to produce toxic substances that can eventually lead to pancreatitis, a dangerous inflammation and swelling of the blood vessels in the pancreas that prevents proper digestion.
Drinking too much alcohol can increase your risk of developing certain cancers, including cancers of the:
Drinking too much can weaken your immune system, making your body a much easier target for disease.Â Chronic drinkers are more liable to contract diseases like pneumonia and tuberculosis than people who do not drink too much.Â Drinking a lot on a single occasion slows your bodyâ€™s ability to ward off infections â€“ even up to 24 hours after getting drunk.
Source:Â National Institute on Alcohol Abuse and Alcoholism; National Institutes of Health; U.S. Department of Health and Human Services
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