4904054
Description
Flashcards by Mel Hughes , updated more than 1 year ago
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Created by Mel Hughes
over 8 years ago
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| Question | Answer |
| Drug abuse | - Drugs can be beneficial to the body but may harm the body - Some people use drugs recreationally - Some of these recreational drugs are more harmful than others - Some of these drugs are legal, some illegal - Heroin and cocaine are very addictive |
| What do abused drugs do? | -They change the chemical processes in peoples bodies -Drugs work by affecting synapses - Some drugs make them work faster (e.g. caffeine) - Some drugs make them work slower (e.g. Cannabis |
| Addiction and withdrawal | - People become dependant on drugs - Can suffer withdrawal symptoms without them - Overall impact of legal drugs on health is much greater than the impact of illegal drugs, because far more people use them |
| Alcohol | - Affects the nervous system by slowing down reactions - Helps people relax - Too much can lead to self-control, unconsciousness or even a coma Long term abuse eventually damages the liver and brain |
| Stimulants | Speed up activity of the brain E.g. Caffeine, nicotine, cocaine |
| Depressants | Sloe down the responses of the brain E.g. Alcohol, cannabis |
| Hallucinogens | Work on the brain to affect the senses E.g. LSD, magic mushrooms, cannabis |
| Performance enhancers | Drugs used in sport to enhance performance |
| What will performance enhancers do? | Build muscle mass Make the body produce more blood (improve stamina) Increase alertness and speed up reactions Reduce tremors Reduce pain during training |
| Give 3 reasons why athletes may take drugs | 1) As medication for disease 2) Illegal recreational 3) As performance enhancers |
| What's a placebo? | -Also known as a 'dummy drug' -Used in double blind drug trials - Has to look and be injected the same way as a real drug -Shows which person has had the drug and who hasn't - Doesn't affect your health |
| Thalidomide | -Developed as a sleeping pill -Useful for easing morning sickness in pregnant women - Caused birth defects with limb abnormalities and fatal deaths |
| Statins | Used to reduce the amount of cholesterol produced in the body (LDLs). This reduces the risk of heart disease. |
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