HIIT can help improve speed and power, but longer, steadier workouts that you can do regularly, like swimming and rowing, are ...
Plus, the surprising benefits of turning the intensity down a notch.
They’re so easy to incorporate into your week.
Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. So where should you ...
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