Is evidence based medicine neglected by royal college examinations? A descriptive study of their syllabi.

studies in the disciplines of epidemiology, work physiology, psychology, and biochemistry have all pointed towards a beneficial effect of physical activity on health, but the optimal intensity, frequency, and duration of physical activity has yet to be established. Although our study was observational, the men were randomly selected from a general population. The estimated effect of jogging did not depend on the inclusion of intermediate variables, supporting the association of jogging with lower mortality. Whether light, moderate, or vigorous exercise should be recommended to the public has changed through the years. Although light exercise has some value, moderate and vigorous exercise is now considered more favourable for health. 4 Our study supports this by showing that even a vigorous activity such as jogging is associated with a beneficial effect on mortality.