Diet and Exercise
- A healthy diest has the right balance of food types.
- Carbohydrates, fats and proteins are used by the body to realease energy and build cells.
- Mineral ions and vitamins are needed for the body to keep healthy.
- If the diet is unbalanced, a person will become malnourished.
- If you exercise, the body uses more energy. Exercise increases the metabolic rate, so chemical reactions in cells work faster.
- The proportion of body fat and inherited factors can also affect the metabolic rate.
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- It is important to get the energy balance correct for good health.
- If the energy you take in equals the energy that you use then your mass will stay the same. Eating too much can often lead to becoming overweight or obese.
- Long-term obesity can lead to othe health issues such as type 2 diabetes (high blood sugar).
- This kind of problem can be reduced by eating less carbohydrates and doing more exercise.
- It is also possible to become unhealthy by eating too little food. It may become hard to walk and people who eat too little may suffer from deficiency disease due to a lack of vitamins or minerals.
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Inheritance, Exercise and Health
- Your metabolice rate can be affected by the genes that you inherit from your parents.
- There are two types of cholesterol.
- You need 'good' cholesterol for your cell membranes, and to make vital substances.
- A small number of people inherit 'bad' cholesterol, which can lead to heart disease.
- Foods rich in saturated fat can also increase blood cholesterol levels.
- By exercising regularly, you can increase your metabolic rate and lower high cholesterol levels.
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