GCSE OCR Gateway Understanding Organisms

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High Blood pressure and Heart disease

- Smoking can increase blood pressure. Carbon monoxide (Found in cigarettes) combines with haemoglobin in red blood cells. This reduces the amount of oxygen the red blood cells can carry. To make up for this your heart rate has to increase and contract more frequently. Increasing your blood pressure.

- Poor diets can lead to heart disease. If your diet is high in saturated fat or salt you could be at more risk of developing heart disease. 

- Saturated fats cause a build up of cholesterol (A fatty substance) Cholesterol is a necessary substance for the…


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