Friendship expert Kat Vellos shares tips on how to make a new friendship stick, including what to do together, how often to ...

Being able to do the splits is a remarkable feat. If you're not quite bendy enough to strike the pose (it me), you might think the splits are reserved for a select few elite. Don't count yourself out ...

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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. I first tried the ...