A vigorous five mile walk will do more good for an unhappy but otherwise healthy adult than all the medicine and psychology in the world Paul Dudley White

A vigorous five mile walk will do more good for an unhappy but otherwise healthy adult than all the medicine and psychology in the world Paul Dudley White
A vigorous five mile walk will do more good for an unhappy but otherwise healthy adult than all the medicine and psychology in the world Paul Dudley White

A vigorous five mile walk will do more good for an unhappy but otherwise healthy adult than all the medicine and psychology in the world Paul Dudley White

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