Discover how exercise affects your heart, lungs and energy levels. This quiz links physical activity, diet and lifestyle choices to health, fitness and the risk of disease.
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You can find more about this topic by visiting BBC Bitesize - Lifestyle and health
They are needed only in quite small quantities to keep your body in good working order - though a lack of vitamins and minerals can have serious health consequences
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When exercising, your muscles need a lot more oxygen for respiration. By breathing faster and more deeply, your body can get more oxygen to the blood. By pumping faster, your heart can get more blood, and therefore more oxygen, to your muscles
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Increased levels of HDL cholesterol help to keep your arteries un-clogged allowing the blood to flow more smoothly
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Heart muscles are tough but over exercising can stretch them. The heart usually recovers given time but can be damaged permanently
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The challenge of this question is the option of diabetes. It does not present you with a specific type of diabetes, so you need to consider whether or not there is a type of diabetes that can be linked to a lack of exercise. If there is, then diabetes can be ruled out from being correct. Type 1 diabetes is not linked with a lack of exercise but type 2 is, thus the answer 'diabetes' can definitely be eliminated as it includes both type 1 and type 2. Beri-beri is the only one that is not linked with a lack of exercise (vitamin B1 deficiency)
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During exercise, muscle cell respiration is higher. This means that more oxygen is needed and more waste materials are produced and therefore need removing. Supplying more blood to the muscles meets both needs
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During very heavy or prolonged exercise anaerobic respiration takes place, during which glucose is converted to lactic acid
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Oxygen helps to break down lactic acid in muscle cells. Lactic acid is also carried away to the liver where it can also be broken down
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High metabolic rates use more energy
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Your body uses energy at a faster rate during exercise so your metabolic rate increases. After exercise it will gradually return to its normal level as you no longer need the higher energy output
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