Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. The upper back is an ...
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Slouched or rounded shoulders? These 11 upper back exercises will help stop pain and increase your mobility
For runners, having tight chest and shoulder muscles can not only feel uncomfortable, but it can also keep you from achieving proper running form and posture that will take your performance to the ...
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