Transcript alcohol - World of Teaching

ALCOHOL
Intermediate 1 Biology
Unit 1 – Health and Technology
Introduction
• A drug is a substance that alters the way
the human body works
• Alcohol is the most commonly used drug in
Britain
• Alcoholic drinks vary in the percentage of
alcohol that they contain
Alcoholic Content of Different
Drinks
60
40
Vodka
Buckfast
20
Smirnoff Ice
0
Beer
Cider
Wine
Whisky
Absinthe
Typical alcohol content (%)
80
Absorption of Alcohol
• Once consumed alcohol is absorbed
from the stomach and other parts of
the gut
• It is carried around the body in the
bloodstream
Absorption of Alcohol
• When alcohol reaches the brain it affects
the brain’s activities
• It often makes a person feel relaxed and
uninhibited
• Alcohol is slowly broken down in to
harmless substances by the liver
• Effects of alcohol gradually wears off
Absorption of Alcohol
• The faster you absorb the alcohol, the higher your
blood alcohol level will be,
• The more alcohol in your blood, the greater its
effect will be.
• Absorption is more rapid if you:
-drink quickly
-add a fizzy mixer
-drink on an empty stomach
-are small, young or female
Units of Alcohol
• One unit of alcohol is the quantity
that can be broken down in a healthy
adult’s liver in about one hour
• The recommended limit per week for
-men
= 21
-women
= 14
How many units of alcohol in
the following?
• A pint of Tenants
- 2 units
• A Barcardi Breezer
-1.5 units
• A vodka and diet coke
-1 unit
• A small glass of wine
-2 units
Harmful Effects of Alcohol
• In the short term an excess of
alcohol in your bloodstream leads to
-poor reaction time
-poorer muscle control and
coordination
-poorer judgement when making
decisions
Harmful Effects of Alcohol
Long term abuse of alcohol can have a
devastating impact on health, eg.:
•Hangovers.
•Weight gain.
•High blood
pressure
•Depressed immune
system
•Cancer
•Liver disease
•Alcohol poisoning
•Heart or
respiratory
failure
•loss of appetite
• Vitamin
deficiencies
•memory loss.
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