4. Alcohol is linked to suicide, self-harm and psychosis
Alcohol can make people lose their inhibitions and behave impulsively, so it can lead to actions they might not otherwise have taken – including self-harm and suicide (3).
According to the NHS in Scotland, more than half of people who ended up in hospital because they’d deliberately injured themselves said they’ve drunk alcohol immediately before or while doing it. 27% of men and 19% of women gave alcohol as the reason for self-harming (4).
Extreme levels of drinking (such as more than 30 units per day for several weeks) can occasionally cause ‘psychosis’. It’s a severe mental illness where hallucinations and delusions of persecution develop. Psychotic symptoms can also occur when very heavy drinkers suddenly stop drinking and develop a condition known as ‘delirium tremens’ – symptoms include body tremors and confusion.