Q: Is brisk walking as good for your heart as running?
A: It can be, provided you expend the same amount of calories. For instance, in a large 2013 study by researchers from the Lawrence Berkeley National Laboratory, runners and walkers who burned the same number of calories had comparable reductions in the risk of developing hypertension, high blood cholesterol, diabetes and heart disease.
And the more they ran or walked, the better. Of course, you have to spend much more time walking (more than twice as much, based on these findings) than you would running to get the “equivalent dose” of exercise.