Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Body-weight exercises are ...

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You can get the same workout and build strength without heavy equipment. But it takes work. By Christie Aschwanden Many people believe that to build strength you either need a set of weights or a gym ...

A new study suggests that HIIT workouts may help preserve lean mass in older adults compared to moderate exercise—but changes were small. Here's what to know.