For the better part of a decade, Whoop sold itself as a secret weapon for serious athletes. LeBron James was convinced to slap on the company’s fitness band in Whoop’s first year. Michael Phelps came ...
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. Prime Day 2025 is here ...
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