Exercise is good for us. It reduces the risks of dying from all causes, including cancer and heart disease. This is according to the World Health Organization. But many people who work all week have little time for exercise. So, they might try to do something to increase their heart rates over the weekend. Go for a long run, take a bike ride, hike in the mountains or do a strenuous chore around the house, such as raking leaves, shoveling snow or digging a garden. We sometimes call people who exercise only on Saturdays and Sundays “weekend warriors.” But is it healthy to avoid exercise during the work-week and then try to fit it all in during the weekend? A new study suggests that, yes, it is healthy. Even weekend warriors may reduce their risk of cancer and cardiovascular disease.