| http://www.w3.org/ns/prov#value | - ngage in at least 30 minutes of moderately strenuous activity at least five days per week, or 20 minutes of vigorous exercise three days per week, in order to remain healthy and reduce their risk of health problems such as cardiovascular disease.Moderately intense exercise is defined as activity that causes a small increase in breathing or heart rate, including brisk walking, bicycling, gardening,
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