Jog or walk fast daily if you want to lower your risk of a heart attack or stroke. Plain old walking won't do the trick.
Daily activities, such as fast walking and jogging, can curb the development of risk factors for heart disease and stroke by as much as 50 per cent, whereas an hour's daily walk makes little difference,...
After taking account of factors likely to influence the results, fast walking speed halved the risk, while jogging cut the risk by 40 per cent. But going for an hour's walk every day made no difference.