Illustration: Riki Blanco
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Reach for the Stars
A small 2015 study in Health Psychology found that people who sit up straighter feel stronger than their slouchy counterparts. Before you start to sag, stretch. "You don't even have to stand up," says Renee Chester Levine, an instructor at Bloom Yoga Studio in Chicago. "Reach overhead, cross your right arm over your left, and touch your palms. You'll release the tension that makes it so easy to slump."
