Do you enjoy a glass of wine after a long day at work or when socializing with friends? Many people drink socially without thinking much about it. However, it’s important to remember that alcohol is a drug, and drinking comes with some level of risk. Even occasional drinking can affect your health, especially when alcohol is consumed in larger amounts or over a short period of time.

According to the World Health Organization (WHO), no amount of alcohol consumption is completely risk-free. This is especially relevant given that about one in five adults in the United States reports binge drinking. 

What Is Binge Drinking?

According to the National Institute on Alcohol Abuse and Alcoholism, binge drinking is the pattern of drinking enough alcohol to bring a person's blood alcohol concentration to 0.08% or above.

For adults age 21 and older, this typically means:

• Men*: five or more standard drinks within about two hours
• Women: four or more standard drinks within about two hours

A standard drink is defined as:

• 12 ounces of beer (5% alcohol content)
• 5 ounces of wine (12% alcohol content)
• 1.5 ounces of 80-proof distilled spirits (40% alcohol content)

Why Is Binge Drinking So Risky?

Many people who binge drink don’t think they drink heavily because they don’t do it every day. Binge drinking often happens on weekends, at parties or during special events. However, consuming a large amount of alcohol in a short time can overwhelm the body.

When alcohol is consumed quickly, it is absorbed faster than the body can process it. Compared with slower, steady drinking, alcohol levels rise more rapidly in the bloodstream, which can overwhelm your brain and vital organs.

Alcohol affects areas of the brain that control:

• Judgment and decision‑making
• Memory and coordination
• Breathing and heart rate

This greatly increases your risk of falls, blackouts and alcohol poisoning, which can be life‑threatening.

What Happens to the Brain and Body?

In the short term, binge drinking slows brain activity and weakens reflexes. This can lead to:

• Slurred speech
• Memory gaps or blackouts
• Poor coordination

You may experience other symptoms, such as:

• Nausea and vomiting
• Dehydration
• Changes in breathing and heart rate regulation

In severe cases, alcohol poisoning can occur, which is a medical emergency. If you suspect alcohol poisoning, go to your nearest emergency department or call 911.

Short‑Term Risks of Binge Drinking

Even a single binge-drinking episode can lead to serious harm, including:

• Alcohol poisoning
• Injuries from falls, burns or car crashes
• Violence or assault
• Unprotected sex, which increases the risk of sexually transmitted infections or unintended pregnancy

Long‑Term Health and Mental Health Risks

Repeated binge drinking over time increases the risk of long‑term health problems, including:

• Heart disease
• High blood pressure
• Liver disease
• Certain cancers, including breast, liver and colorectal cancer
• Mental health conditions, such as depression and anxiety

People who binge drink regularly are also at greater risk of developing alcohol use disorder, a medical condition that makes it hard to control drinking.

“Although not everyone who binge drinks has an alcohol use disorder, binge drinking is still a serious risk,” says Amanda N. Donald, MD, a physician specializing in addiction medicine at Northwestern Medicine.

Warning Signs Binge Drinking Is Becoming a Problem

Binge drinking may be turning into a larger issue if you:

• Frequently drink more than planned
• Feel like you need alcohol to relax or cope with stress
• Have trouble remembering events after drinking
• Experience problems at work, school or in relationships

Can Occasional Binge Drinking Still Be Harmful?

Yes. Even occasional binge drinking can increase the risk of alcohol poisoning, injuries and negative effects on mental health. Over time, these episodes can make it harder to cut back and may increase the risk of developing alcohol use disorder.

When Should You Get Help?

Consider talking to a physician or mental health professional if drinking feels out of control, causes health problems or impacts your daily life. Treatment options may include counseling, medications or support programs.

Learn more about addiction and treatment options.

* Scientists do not always collect information from participants about gender identity. To avoid misrepresenting the results of this research, we use the same terminology as the study authors.