Falling asleep with the lights or television on not only wastes electricity, but it’s now been linked with obesity, according to a new study.
New research published in JAMA International Medicine found that sleeping with artificial light at night was significantly associated with an increased risk or weight gain and specifically obesity. The study looked at nearly 44,000 healthy women ages 35 to 74 years across the US, who were asked about their sleeping habits like whether they slept with no light, a small nightlight, and light or a television coming from another room over a five-year period. The candidates were women who had no history of cancer and worked regular hours.
The study found that women who slept with any type of light including a television were 17% more likely to gain 11 pounds or more over the course of five years.
“Turning off the light while sleeping may be a useful tool for reducing a possibility of weight gain and becoming overweight or obese,” said Dr. Yong-Moon Mark Park, the study’s lead author, via UPI.
“It also may disturb day-to-day variations of stress hormones and affect other metabolic processes in ways that contribute to weight gain.”
Park said using a small night lamp wasn’t associated with weight gain but admitted sleeping with light or television on were. That could lead to more than obesity including poorer sleep which leads to sluggishness that inhibits exercise and can lead to bad eating choices.\
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