The average American spends a total of just two hours per week, or 17 minutes per day, exercising. Only about 0.05% of the U.S. population has ever completed a marathon, while approximately 0.007% of ...
What to do if you miss a week, have an extra week, can’t get this week’s long run in, and more. Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and ...
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