Moderate exercise: no pain, big gains.
D004734:Energy Metabolism; D015444:Exercise / Q000502:physiology*; D005260:Female; D017408:Guidelines as Topic; D006801:Humans; D008297:Male; D009026:Mortality / Q000639:trends; D010101:Oxygen Consumption / Q000502:physiology*; D012420:Running / Q000502:physiology; D013997:Time Factors; D016138:Walking / Q000502:physiology