Say goodnight to weight gain

Better Nutrition, Feb, 2005

> Say Goodnight to Weight Gain: We reported this news in our October 2004 issue, but now it's official. It was announced at the North American Association for the Study of Obesity on November 15, 2004, that obesity is linked to a lack of sleep. Levels of leptin--a satiety hormone--dropped by 20 percent in subjects allowed to sleep for only 4 hours a night, and levels of a hunger-promoting peptide called ghrelin rose by 20 percent: