20 minutes of vigorous exercise daily works wonders for teens - The Washington Post

Vigorous physical activity for 20 minutes a day is deemed the best way for teens to develop and maintain cardiorespiratory fitness, according to research published in Pediatrics.

Placeholder while article actions load Exercising vigorously for 20 minutes a day may be the best way for teens to develop and maintain cardiorespiratory fitness, suggests a study published in the j… [+1822 chars]

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