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or a popular 10-minutes-of-yoga-a-day-for-30-days challenge, fitness influencers keep pushing new workout ideas − usually contained within month-long windows. Among the most popular challenges today ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Ready to revamp your workout routine—and get lasting results? Enter: the ...

The Sofa Squat challenge is for anyone ... Start with at least 10 Sofa Squats a day, then when you feel comfortable move on to 20, then 30, then 40, building up to 100 over the 100 days.