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Answer:
3 all of above, because exercising reduces your chances of getting sick, you can inherit disease from your parents and being fat causes you to develop health problems, for example: diabetes, asthma, high blood pressure, etc.
During an asthma attack the muscle wall contracts and the lining of the airways becomes swollen and inflamed. These changes cause a narrowing of the airways which is further aggravated by an increase in secretions from the mucus membrane, which may actually block the smaller airways hope this helps