"Exercise is necessary for all except those actually and acutely ill, at all ages, for both sexes, daily, in amount just short of fatigue."
-Dr. FC Smith, US Surgeon General's Office, 1915
"Bicarbonate infusion and pH clamp moderately reduce hyperventilation during ramp exercise in humans"
"Trends in leisure-, transport-, and work-related physical activity in Canada 1994-2005"
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