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Forget push-ups — this 15-minute arm workout builds your triceps, pecs and shoulders in 15 moves

Add Yahoo as a preferred source to see more of our stories on Google. Woman holding a set of dumbbells left arm extended at shoulder height and right arm by head during dumbbell arm workout in studio.
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Forget push-ups — this 15-minute standing dumbbell workout strengthens your arms and upper body

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Shutterstock The ...
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No sit-ups here - a Pilates instructor recommends this 15-minute workout to strengthen your core without a single one

You don't need to spend hours breaking a sweat to get into shape, and you certainly don't need to do sit-ups to improve your core strength. A simple 15-minute Pilates workout will do. It's an ...