Official recommendations vs. your goals.

HIIT can help improve speed and power, but longer, steadier workouts that you can do regularly, like swimming and rowing, are ...

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Plus, the surprising benefits of turning the intensity down a notch.

Randal Claytor is an associate professor of kinesiology, nutrition and health at Miami University. When you enter the gym, which way should you head first? Toward the treadmills and spin studio to get ...

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. January 12, 2026 Add ...

WASHINGTON - Let's face it, a solid resistance exercise routine can be tedious, but effective. When it comes to cardio exercise, you have more freedom. You need to raise your heart rate, get your ...