Even trainer Ari Cobb has sweat stains after 10 minutes of this bodyweight shadowboxing HIIT workout. Press play to fire your heart rate and work every muscle. New Release: Farm, merge, grow and ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Kickboxing isn't just about throwing punches and kicks—it's a high-intensity, full-body workout with the ...

Megan Roup, who's been the trainer to Dakota Johnson, Miranda Kerr, Molly Sims, Elsa Hosk and Whitney Port, has developed a series of exercises that can be done in under 10 minutes. (Photo: Courtesy ...

This workout is short — just 10 minutes — and requires no equipment. But it packs in a lot of work. PS Fit instructor Natalie White designed it to target your abs, core, and thighs, and she'll have ...