Players from Pop Warner on are in a state of denial about their physical condition and long-term health.

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This is known as 'diagnostic overshadowing - whereby a patient's physical symptoms tend to be seen in terms of their mental health condition or learning disability.

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As Barack Obama stands poised to be peacefully sworn in to the presidency on Jan. 20, the business world remains roiled by its own unanswered questions of succession as Apple's chief, Steve Jobs, took a health-related leave of absence after months of speculation about his physical condition.

FORBES: Magazine Article

They also assessed their physical and neurological health, and carried out tests - including memory, language and abstract reasoning - to evaluate their condition.

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