How to Develop Mental Strength: The Magic of David Blaine

David Blaine might be the mentally toughest person on earth.

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Here’s a short excerpt of the death-defying feats he’s pulled off over the years:

• Holding his breath for 17 minutes and 4 seconds.
• Consuming nothing but water for 44 days.
• Catching a .22 caliber bullet with a small metal cup in…