AS EDEXCEL BIOLOGY UNIT 1 NOTES - RISK FACTORS FOR CVD
- Created by: Charlotte Wilde
- Created on: 04-05-11 20:16
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LIFESTYLE FACTORS CAN INCREASE RISK OF CVD:
- DIET - High sat. fat diet - increased risk. Increases blood cholesterol (BC) levels - increases atheroma formation.
- High salt diet - increases blood pressure.
- HIGH BLOOD PRESSURE (HBP)- increased risk of damage to artery walls - increased risk atheroma formation. BP increased by excessive alcohol, smoking, stress & diet.
- SMOKING- Carbon monoxide (CO) reduces amount of oxygen in blood - less oxygen available to tissues. No enough to heart - heart attack, & not enough to brain - stroke.
- Nicotine makes platelets stick - increased chance of blood clots.
- Decreases amount of antioxidants - makes cell damage more likely.
- INACTIVITY - lack of exercise - increases blood pressure --> increased risk of CVD.
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THERE ARE ALSO FACTORS THAT ARE OUT OF YOUR CONTROL...
- GENETICS - Some people have specific alleles - makes them more…
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