uh, oh. potential bad news for all those people who take delight in telling runners that walking is just as healthy:

“But a new study published today said moderate exercise such as a brisk walk five times a week has no impact on the risk of dying from heart disease.

Only vigorous exercise such as jogging and hiking seems to make a difference, says Dr John Yarnell of Queens’ University in Belfast.”

those with an eye for detail will note that the study designers defined “moderate” exercise as, “…golf, digging and dancing.”