High-intensity interval training (HIIT) involves multiple short bursts of intense exercise and is known to offer many health benefits. In this study, researchers recruited 30 inactive men and women who had never tried HIIT before. Participants then completed both high-intensity and traditional moderate-intensity exercise programs and then rated each on a multi-point pleasure-displeasure scale. Despite reporting higher levels of displeasure during the HIIT sessions, participants subsequently rated both forms of exercise as equally enjoyable and 79% later went on to perform HIIT on their own. Medicine & Science in Sports & Exercise, May 2018