Jun 28, 2019
If you love falling asleep with the TV treating you to Law and Order or if you merely leave a light on in the room, you’d better watch that scale.
The NIH’s National Institute of Environmental Health Sciences studied nearly 44,000 women in the so-called Sister Study of women’s disease. The researchers questioned the participants about their sleeping habits and compiled physical data including weight at the onset of the study and again 5 years later.
Women who slept with the TV going or a room light on were 17% more likely to gain 11 pounds over the 5 years compared with those who slept in a dark room or at most had a small nightlight burning. The weight gain was not associated with the reported quality of the participant’ s sleep.
The investigators suspect that disruption of the natural day-night cycle or circadian rhythm may be the culprit. If you must fall asleep to the TV or with a light, use a sleep timer.
Yong-Moon Mark Park, Alexandra J. White, Chandra L. Jackson, Clarice R. Weinberg, Dale P. Sandler. Association of Exposure to Artificial Light at Night While Sleeping With Risk of Obesity in Women. JAMA Internal Medicine, 2019; DOI: 10.1001/jamainternmed.2019.0571
#Sleep #overweight #obesity