One day. No sleep. Hundreds — maybe thousands — of pushups. This challenge broke me down and pushed me past my limits. Here’s what I learned from doing pushups for 24 hours straight.
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The 50 best 'Survivor' challenges ever — according to the people who made them (exclusive)
From 'Survivor' classics to one-hit wonders, challenge creators John Kirhoffer and Christopher 'Milhouse ' Marchand take us ...
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