Maxed Out: Testing Humans To Destruction

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We have an irrepressible urge to push our boundaries and set records. How much further can we go, physically and mentally, before we reach our ultimate limits?

What's the human speed limit? How long could you survive without food or drink? How long can you go without sleep? How much can a human lift? and other questions are answered in 'The Astounding Limits of Endurance.'