Question: How often should I excerise? 

Answer: it is best to do some sort of cardio exercise (running, riding a bike, arobics) 30 mins a day 3 or 4 times a week, with some relaxed stretching exercises (yoga) 30 mins 2 to 3 times a week, with at least one or two days of inactivity (to give your muscles a little time to heal).
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