Alcohol is a commonly used beverage. People drink alcohol for a range of reasons – including relaxation and celebration. Alcohol can be enjoyed in sensible quantities. However, alcohol is a mind-altering substance and has a number of potentially harmful effects. Alcohol can:
The likelihood and severity of these harmful effects will increase with the amount of alcohol consumed.
Regular excessive drinking can:
Importantly, heavy drinking can affect brain development in young people.
In Australia, 13% of deaths among 14-17 year olds are due to alcohol. It has been estimated that, each week in Australia, alcohol contributes to the hospitalisation of more than 60 teenagers and the death of at least one. More than half of all serious alcohol-related road injuries occur among 15-24 year olds. About one-third of all self-inflicted injuries and suicides are linked to alcohol.
If the blood alcohol concentration reaches a high enough level, a person can become unconscious and, because alcohol has a depressant effect on the body, eventually breathing will slow down. This can lead to suffocation and death if a person vomits and then inhales it.
The alcohol in our bloodstream can only be removed by the liver. It takes the liver about one hour to break down and clear one standard drink from the body. Contrary to popular belief, cold showers, walking, black coffee, fresh air or vomiting do not speed up this process. People can still have alcohol in their blood the day after a heavy drinking session and may still be affected and be over the legal limit to drive.
Some people believe that mixing energy (or high caffeine) drinks with alcohol reduces fatigue and the impairments associated with drinking alcohol on its own. Early studies show that consuming a stimulant along with alcohol only reduces the ‘feeling’ of being drunk, but the physical and mental impairments that the alcohol causes remain the same. Because these impairments will still be real, a reduced feeling of being drunk may lead to increased risk-taking and greater potential harms. This makes combining alcohol with energy drinks particularly dangerous.
A standard drink contains 10 grams of alcohol:
| LIGHT BEER (2.7% alcohol) | |
| 1 glass (285ml) = | 0.6 standard drinks |
| 1 can or stubbie (375ml) = | 0.8 standard drinks |
| 1 schooner or pot (425ml) = | 0.9 standard drinks |
| 1 slab or case = | 19 standard drinks |
| MID-STRENGTH BEER (3.5% alcohol) | |
| 1 glass (285ml) = | 0.8 standard drinks |
| 1 can or stubbie (375ml) = | 1 standard drink |
| 1 schooner or pot (425ml) = | 1.2 standard drinks |
| 1 slab or case = | 24 standard drinks |
| REGULAR BEER (4.8% alcohol) | |
| 1 glass (285ml) = | 1.1 standard drinks |
| 1 can or stubbie (375ml) = | 1.4 standard drinks |
| 1 schooner or pot (425ml) = | 1.6 standard drinks |
| 1 slab or case = | 34 standard drinks |
| WINE (11.5%-13.5% alcohol) | |
| 1 glass (150ml) = | between 1.4 and 1.5 standard drinks |
| 1 bottle (750ml) = | between 6.8 and 7.7 standard drinks |
| 4 litre cask = | 39 standard drinks |
| SPIRITS (40% alcohol) | |
| 1 nip (30 ml) = | 1 standard drink |
| 1 bottle (700ml) = | 22 standard drinks |
| PRE-MIXED SPIRITS (5% alcohol) | |
| 1 bottle (275ml) = | 1.1 standard drinks |
| 1 can (375 ml) = | 1.5 standard drinks |
| This information is a guide only, as container and glass sizes can vary significantly. People often underestimate the amount of alcohol they have consumed. | |
The 2009 Australian Alcohol Guidelines advise that healthy adults should consume no more than two standard drinks on any day. However, if this is exceeded, consuming no more than four standard drinks on any one occasion will reduce the risk of injury during and immediately after consuming the drinks. Young people have an increased risk of alcohol-related harm and injury. It is therefore safest for young people under 15 not to drink alcohol, and for people between 15 and 17 years to delay taking up drinking for as long as possible.
Drinking regularly over time also increases the risk of developing chronic health conditions.
There is no safe level of drinking during pregnancy. You should avoid alcohol if you are pregnant or think you might be pregnant.
Drink spiking is when alcohol or another drug is added to your drink without you knowing. It is illegal. Both alcoholic and non-alcoholic drinks can be spiked. Drink spiking can happen at night clubs, bars and parties and can make you unable to defend yourself, or to remember what happened. It can also result in you becoming unconscious. Drinks are most commonly spiked with alcohol itself (e.g. by adding strong spirits), but sedatives and other drugs are also used. People who spike drinks may be aiming to rob the person who consumes the drinks, or to physically or sexually assault them. You can avoid drink spiking by only accepting drinks from people you know or trust, and by not leaving your drink unattended. If you are unsure about what’s in your drink, don’t drink it. If you suddenly feel dizzy or sick, tell a friend and get them to take you to a safe place.
If someone passes out and is unconscious, or cannot walk or talk because they have drunk too much alcohol:
If you think that you or a friend may have a drinking problem, it is important that you talk to someone about it. A GP can help with withdrawal and treatment programs and can refer someone to a specialist drug and alcohol service. All Australian states and territories have drug and alcohol services that can help.
Finding More Information
If these services can’t provide the information you need, they will be able to give you the contact details of a service in your area that can.
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