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To What Degree Do I Need to Exercise to Improve My Health?

To What Degree Do I Need to Exercise to Improve My Health? (0:15)

Do moderately intense cardio 30 minutes a day, five days a week. Or do vigorously intense cardio 20 minutes a day, three days a week and do eight to 10 strength-training exercises, eight to 12 repetitions of each exercise twice a week.