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Alcoholic Consumption

Many people enjoy a drink without any problems, but binge drinking or drinking heavily over longer periods of time can have very serious consequences. Alcohol misuse not only harms the individual, but damages relationships and society in general in terms of violence and crime, accidents and drink driving.

In Northern Ireland, the number of alcohol-related deaths has more than doubled since 1994. The most recent figures show:

  • there were 270 deaths recorded as alcohol-related in 2012;
  • there were more than 11,500 alcohol-related admissions to hospitals in 2009/10.

    Long-term effects

    As well as the recognised immediate effects of drinking too much, such as nausea and vomiting, binge drinking and prolonged heavy drinking over longer periods of time can affect you in many different ways.

    Brain damage

    Binge drinking can cause blackouts, memory loss and anxiety. Long-term drinking can result in permanent brain damage, serious mental health problems and alcohol dependence or alcoholism. Young people’s brains are particularly vulnerable because the brain is still developing during their teenage years. Alcohol can damage parts of the brain, affecting behaviour and the ability to learn and remember.


    Drinking alcohol is the second biggest risk factor for cancers of the mouth and throat (smoking is the biggest). People who develop cirrhosis of the liver (often caused by too much alcohol) can develop liver cancer.

    Heart and circulation

    Alcohol can cause high blood pressure (hypertension), which increases the risk of:

    • having a heart attack or stroke
    • developing some types of dementia.

    It also weakens heart muscles, which can affect the lungs, liver, brain and other body systems, and also cause heart failure. Binge drinking and drinking heavily over longer periods can cause the heart to beat irregularly (arrhythmia) and has been linked to cases of sudden death.


    People who drink a lot of alcohol have more lung infections, are more likely to suffer collapsed lungs and can be more likely to get pneumonia. When a person vomits as a result of drinking alcohol, they may choke if vomit gets sucked into their lungs.


    Drinking too much alcohol initially causes fat deposits to develop in the liver. With continued excessive drinking, the liver may become inflamed, causing alcoholic hepatitis, which can result in liver failure and death. Excessive alcohol can permanently scar and damage the liver, resulting in liver cirrhosis and an increased risk of liver cancer. Women are particularly susceptible to the effects of alcohol on the liver.


    Drinking above recommended limits can lead to stomach ulcers, internal bleeding and cancer. Alcohol can cause the stomach to become inflamed (gastritis), which can prevent food from being absorbed and increase the risk of cancer.


    Heavy or prolonged use of alcohol can cause inflammation of the pancreas, which can be very painful – causing vomiting, fever and weight loss – and can be fatal.


    Heavy drinking may result in ulcers and cancer of the colon. It also affects your body’s ability to absorb nutrients and vitamins.


    Heavy drinking can increase your risk of developing high blood pressure – a leading cause of chronic kidney disease.


    Alcohol interferes with the body’s ability to absorb calcium. As a result, your bones become weak and thin (osteoporosis).

    Weight gain

    Alcohol is high in calories. Weight for weight, the alcohol in a drink contains almost as many calories as fat. The average bottle of wine contains 600 calories while four pints of average strength lager contain 640.


    Alcohol dehydrates your body and your skin. It also widens blood vessels, causing your skin to look red or blotchy.

    Sexual health

    Binge drinking makes you lose your inhibitions and affects your judgement. This may make you less likely to use a condom, which increases your risk of getting a sexually transmitted infection such as chlamydia, HIV or hepatitis. It can also lead to an unplanned pregnancy.

    Mental health

    People may think that alcohol helps them cope with difficult situations and emotions, and that it reduces stress or relieves anxiety, but alcohol is in fact associated with a range of mental health problems including depression, anxiety, risk-taking behaviour, personality disorders and schizophrenia.

    Alcohol has also been linked to suicide. The Mental Health Foundation reports that:

    • 65% of suicides have been linked to excessive drinking;
    • 70% of men who take their own life drink alcohol before doing so;
    • almost one third of suicides among young people take place while the person is intoxicated.

    Excessive drinking can disrupt normal sleeping patterns, resulting in insomnia and a lack of restful sleep, which can contribute to stress and anxiety.1

    1. Mental Health Foundation. Cheers! Understanding the relationship between alcohol and mental health. London: Mental Health Foundation, 2006.

    Other effects

    Alcohol affects the parts of your brain that control judgement, concentration, coordination, behaviour and emotions. If you binge drink, you may be at greater risk of:

    • becoming a victim of crime, eg rape, domestic violence, mugging or assault;
    • being involved in anti-social or criminal behaviour, eg fights, domestic violence, vandalism or theft;
    • having an accident, eg a road accident, fall, accident at work or accidental fire;
    • losing your job, eg repeated absence or poor performance (think about the financial consequences);
    • damaging relationships with family or friends.


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