The Navy SEAL 40 Percent Rule Can Help You Achieve Mental Toughness

Curiosity Published August 8, 2018 5,336 Plays

Rumble If you've ever run a marathon, survived a natural disaster, or given birth, you know that your body is capable of much more than you think. One U.S. Navy SEAL has formalized this idea into something many call the 40 percent rule. That is, when your mind says you're done, you're only 40 percent done. Though the 40 percent rule is mostly backed by anecdote, there is some scientific research to support it.

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