A Dose-Response Curve for Physical Activity and Slowed Brain Aging

A Dose-Response Curve for Physical Activity and Slowed Brain Aging

Studies of the dose-response curve for exercise have typically shown that little exercise is much better than no exercise, and gains continue at a slowing pace up to a fair way above the recommendation of 150 hours of moderate to vigorous physical activity per week. See research showing that two to four times that amount further improves outcomes, for example. At some point, however, diminishing returns tip over into harm. There is such as thing…