Researchers tracked the incidence of heart failure over six years in more than 94,000 middle-aged adults in the U.K. Biobank who wore wrist accelerometers to record the amount and intensity of their physical activity over seven days between 2013-2015. Participants who engaged in 150-300 minutes of moderate physical activity or 75-150 minutes of vigorous physical activity during the week of observation reduced their risk of being hospitalized for or death from heart failure by two-thirds compared to participants who did not engage in the same amounts of moderate or vigorous physical activity during the week.