Sleeping with the TV on or artificial light could contribute to a new study, to weight gain. The research was published online in JAMA Internal Medicine, is the first that describes such a connection.
Who turns off the light before bedtime may reduce the risk of increasing weight. This abstraction, researchers at the National Institute of Health in the United States, the evaluation of the questionnaires of 43.722 women aged 35 to 74 years. Within five years, there was in women who slept under artificial light, with a 17 percent higher probability to a weight gain of five kilograms. Also an effect of intensity was observed: A small night light, unlike a TV or artificial light has no effect.
The author of the study Dr. Chandra Jackson explained that street lights, neon signs and other light sources of the sleep hormone Melatonin and the natural 24-hour rhythm can disrupt ": ;The human being is genetically in a natural environment, the light and the night of darkness is during the day from the sun. The nighttime exposure to artificial light can alter hormones and other biological processes in a way that increases the risk for Obesity." In addition to an unhealthy, high-calorie diet and lack of exercise could increase therefore also artificial light during the night, the risk for an increase in weight.