Not having enough time to exercise is no longer an excuse to not get fit. This study included 31 sedentary healthy women who performed brief ten-minute stair climbing routines three times per week for six weeks. The routines involved quick bursts of vigorous stair climbing separated by short periods of recovery. Despite achieving a total of only 30 total minutes of exercise a week, the participants experienced increased cardiorespiratory fitness—an important healthy marker linked to longevity. Medicine & Science in Sports & Exercise, February 2017