Can you run a mile (1.6 kilometers), and if so, how fast? If youre middle-aged, researchers claim that this fitness test could predict your chances of having a heart attack or stroke over the next decade.
Can you run a mile (1.6 kilometers), and if so, how fast? If youre middle-aged, researchers claim that this fitness test could predict your chances of having a heart attack or stroke over the next decade.
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