Fitting in workouts is likely to be tough. That’s why a new study from McMaster University in Canada is such good news: Researchers found that exercise bursts as brief as 20 seconds—like sprinting up a few flight of stairs—can have major heart health benefits.
Stair climbing can be done pretty much any time and anywhere, the researchers say, giving busy people one less excuse for skipping workouts altogether. Previous research has shown that longer, sustained step workouts can improve heart health, but this is the first time scientists have studied the effects of sprint intervals—shorter bursts of vigorous activity followed by short recovery periods—in the context of stair climbing. And here also some tips on how to work out if you have not enough time.