What is alcohol?
The type of alcohol that features in the alcoholic drinks we drink is a chemical called ethanol. To make alcohol, you need to put grains, fruits or vegetables through a process called fermentation ( yeast or bacteria react with the sugars in food – the byproducts are ethanol and carbon dioxide).
Wine and cider are made by fermenting fruit, while fermented cereals such as barley and rye form the basis of beer and spirits. A drink’s alcohol content is affected by how long it’s left to ferment.
Spirits also go through as process called distillation – where a proportion of the water is removed, leaving a stronger concentration of alcohol and flavor.
Strength of alcoholic drinks
ABV or alcohol by volume refers to the strength of your drink. If you take a look at the label of a bottle of alcohol, you will see either a percentage, followed by the abbreviation “ABV” or sometimes just the word “vol”. Wine that says “13 ABV” on its label contains 13% pure alcohol.
Alcohol in units
The amount of alcohol in a drink is measured in units. One unit is 10 ml or 8g of pure alcohol. The size and strength of your drink will determine the number of units it contains. You can work out the number of units in your drink with this handy sum:
Strength (ABV) x Volume (ml) ÷ 1000 = No. of units.
For example, a strong pint of lager would be: 5.2 (ABV) x 568 (ml in a pint) ÷ 1000 = 2.95 units.
What happens when you drink alcohol?
From the second you take your first sip, alcohol starts affecting your body and mind. After one or two drinks you may start feeling more sociable, but drink too much and basic human functions, such as walking and talking, become much harder. You might also start saying things you don’t mean and behaving out of character. While some of alcohol’s effects disappear overnight – the effects of regular heavy drinking can start affecting different areas of your life, and even encourage the development of long-term health conditions, such as heart and liver disease.
Alcohol Poisoning
A person has alcohol poisoning if they have consumed a toxic amount of alcohol, usually over a short period. Their blood alcohol level is so high it is considered toxic (poisonous). The patient can become extremely confused, unresponsive, disoriented, have shallow breathing, and can even pass out or go into a coma.
Facts about Alcohol Poisoning
• Alcohol poisoning is a serious condition.
• Even when someone stops drinking, there is risk of alcohol poisoning for some time afterward.
• Symptoms include confusion, abnormal breathing, and vomiting.
• In severe cases, alcohol poisoning is life-threatening.
Symptoms of Alcohol Poisoning
Even when someone stops drinking, blood alcohol concentration (BAC) can continue to rise for 30-40 minutes, resulting in worsening symptoms.
The following signs and symptoms may indicate a progression from being drunk to alcohol poisoning:
- confusion
- hypothermia (the person's body temperature drops)
- pale skin, sometimes it may take on a bluish tinge
- the individual is unresponsive but conscious (stupor)
- the individual passes out
- abnormal breathing - sometimes up to 10 seconds between breaths
- very slow breathing
- vomiting - potential to choke on vomit when confused
In serious cases:
- breathing might stop completely
- a heart attack may occur
- there is a risk of choking on their own vomit - vomit might be inhaled into the lungs causing a serious infection
- hypothermia
- if the individual loses too much fluid (severe dehydration), there is a risk of brain damage
- if blood glucose levels drop (hypoglucenia), they might develop seizures
- if the alcohol poisoning is extreme, the patient can go into a coma and potentially die.
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