That little indulgence you enjoy over the weekend may not affect long-term weight loss. In fact, it may help you keep your weight under control. Scientists who monitored the weight of 80 adults for a minimum of 15 days found there was an overall pattern of higher weight on Sundays and Mondays. The participants who then lost more weight from Tuesday until the weekend ended up losing or maintaining their weight successfully up to a year later. That's sweet news!