The basic idea is conventional wisdom: Children who spend more time physically active than their sedentary peers will generally be healthier. Now a new study in the current Journal of the American Medical Association has refined this common understanding, looking specifically at the amount of time spent physically active and sedentary as it relates to certain risk factors in otherwise healthy children. The findings suggest that the length of time a child spends being physically active, regardless of sedentary time, is key to improved heart and metabolic health.
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