How does alcohol affect my health?
Alcohol is the most used drug in our society. Alcohol is the common name for ethanol or ethyl alcohol, the clear colorless liquid that is the psychoactive substance in alcoholic drinks.
Alcohol is absorbed into your body through the mouth, stomach, and intestines. Alcohol activates the reward centre in the brain. It also slows down brain functions and thought processes.
Alcohol’s effects are the same no matter what alcoholic beverage you drink. Any beverage that contains alcohol — beer, wine, cider, spirits carry the same risk of harms.
How it affects you depends on several factors:
- the amount you drink and how quickly
- your sex, gender, age, and body size
- the amount of food you have eaten and/or other substances in your system
- your overall health
Short-term risks
Alcohol is a drug that can impair judgment and decision making and can have serious consequences. The risk of negative outcomes begins with any alcohol use and consuming more than 2 standard drinks per occasion is associated with a significant increased risk of harms to self and others.
Drinking a lot of alcohol on a single occasion (binge drinking or heavy drinking) may cause you to experience these effects:
- impaired attention, concentration, and judgement
- unintentional injuries
- drowsiness, slow reaction time, blurred vision
- impulsive, aggressive, and violent behaviour
- impaired or loss of memory
- a hangover, or feeling ill, the day following excess alcohol consumption
Severe alcohol intoxication can lead to alcohol poisoning. Critical signs and symptoms of an Alcohol Overdose include:
- stupor or near unconsciousness
- unconsciousness
- unable to act or think normally
- vomiting
- slow and/or irregular breathing
- pale or blueish skin colour
Know the Danger Signs and Act Quickly: Cold showers, hot coffee, or walking it off do not reverse alcohol overdose - Call 911 immediately.
Taking alcohol with cannabis or other drugs (prescription and non-prescription) or energy drinks can have more harmful consequences then using each one alone. Avoid mixing alcohol and other drugs.
Long-Term risks
New evidence shows a direct link between alcohol and a higher risk of certain cancers, and there are no protective effects of moderate alcohol drinking against heart disease.
Regular heavy consumption of alcohol increases risks of:
- Cancer
- Heart disease and stroke (high blood pressure)
- Liver Disease (cirrhosis)
- Diseases of the stomach, digestive system, and pancreas
- Brain and nerve damage
- Fetal Alcohol Spectrum Disorder (FASD) from maternal use during pregnancy – see Alcohol and Pregnancy
- Alcohol Dependence
To lower these risks individuals must be aware of important information about alcohol and their health. Evidence confirms that drinking less means less harm from alcohol. Canada’s Guidance on Alcohol and Health allows individuals to assess their own level of risk and make informed decisions about their alcohol use.
Any reduction in alcohol use has benefits.
- If you don't drink, don't start.
- Set a weekly maximum and try not to exceed it.
- Drink slowly.
- Alternate between alcoholic and non-alcoholic drinks. Consider the below mocktail recipes to reduce your alcohol consumption.
- Choose alcohol free or low-alcoholic drinks.
- Eat before and while you’re drinking.
- Eating well and being active are other ways to improve your health.
- Know your limits with alcohol and consider assessing your drinking with this practical guide.
- Where to get help.