What's 30 minutes long, requires two dumbbells and builds full-body muscle? This short high-intensity workout. You don't need a gym's worth of equipment to get started, and it'll strengthen your core ...

If you're after a short, intense workout that'll strengthen your core, build muscle all over your body and raise your heart rate for fat-burning results, I've found just the routine you need — no gym ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images You're busy — there's work to do, chores to finish, social events to attend ...