Oldis, 62, says people can develop it as a mental skill, though introverted and creative types tend to have an easier time.

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Being both patient and urgent and still retaining the ability to function is a mental skill that pays dividends in all kinds of human endeavors.

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The security gate inspections has also forced the sky warrior to add mental endurance to his or her skill set.

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But the rough is only marginally thicker than at some regular Tour events and winning the Players does not require the same level of skill, high-wire daring and mental endurance that winning a major does.

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