Young people. and middle aged because young people could cause of the stress at school not doing their work or bullies and worrying at parents situation such as divorce and their health. middle aged because of their aging skin care and work,bills to pay, kids, school problems from kids, and the way of food
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If this is not a multiple choice question, I would reccomend rehydrating your body, dressing in the appropriate exercise clothing, and stretching. If you are going to swim, then you should probably take a shower before entering a pool.
Improving cardiovascular fitness can reduce your risk of developing heart disease by increasing the efficiency of your heart, lungs, and blood vessels.