New research funded by the National Institutes of Health over in the US has concluded that getting to bed early may be the best way to lose weight. Scientists with the Kaiser Permanente Center for Health Research in Portland found that people wanting to lose weight also need to stop getting so stressed, because it has a profound effect on an individual's healthy eating schedule. A two-stage testing process saw 472 obese adults being counselled about lifestyle changes over a 26-week period, such as cutting 500 calories a day out of their diet. By the end of the first phase alone, participants lost an average of 14lbs. Study author Dr Charles Elder said of the results: "We found that people who got more than six but less than eight hours of sleep, and who reported the lowest levels of stress, had the most success in a weight-loss program." He and his team argued that the main problem with stress was that it stopped an individual focusing on their self-imposed behavioural changes; weight loss tends to be the most commonly-occurring one of these.