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Health & Fit The Serious Reason You Need to Sleep in the Dark

21:32  13 june  2018
21:32  13 june  2018 Source:   rd.com

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Improving sleep in adults at risk for heart disease, stroke, and diabetes represents a much needed and novel approach to the prevention and treatment of epidemics of type 2 diabetes and obesity, as well as improve the quality of life of those suffering from sleep disturbances.”

If you tend to spend half of the night in the living room, drifting in and out of sleep in front of the TV, you really need to read this.

  The Serious Reason You Need to Sleep in the Dark © WeAre/Shutterstock

Strangely, scientists still haven’t figured out why sleep is so crucial for our survival. But they do know that not getting enough wrecks our health. Now, a new study out of Northwestern University reveals that having a light on while sleeping can raise your risk of diabetes. 

For the study—published in the journal, Sleepresearchers recruited 20 healthy adult volunteers (ages 18 to 40). The volunteers spent two nights and three days at the lab: The first night, they slept in pitch black darkness; the second night, half of them slept in the dark again while the other half slept in a room with a bright overhead light on. While the volunteers slept, the researchers tracked the volunteers’ vital signs, brain wave activity, and leg and eye movements; they also took hourly blood samples to measure melatonin—a vital hormone that helps control your internal clock (circadian rhythm) and typically rises during sleep. In the morning, the researchers conducted glucose tolerance tests on the volunteers.

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If you tend to spend half of the night in the living room, drifting in and out of sleep in front of the TV, you really need to read this.

Although this is preliminary research, it does support the idea that you should avoid falling asleep on the couch and spending part—or most—of the night with the lights on and the TV blaring. Check out these 12 ultimate secrets to a good sleep . Originally published as The Serious Reason You Need to Sleep

Remarkably, just sleeping under a bright light drove up insulin resistance—a risk factor for diabetes. When insulin can’t do its job, the body struggles to process sugar. “Our preliminary findings show that a single night of light exposure during sleep acutely impacts measures of insulin resistance,” said lead author Ivy Cheung Mason, PhD, a postdoctoral fellow at Northwestern’s Feinberg School of Medicine (at the time of the study), in a press release.

Previous research has linked poor sleep to a higher risk of depression, breast cancer, and prostate cancer. Now we can add metabolic diseases such as diabetes to the list: “Sleep disturbances affect more than 25 percent of the general population and up to 50 percent of older adults… Improving sleep in adults at risk for heart disease, stroke, and diabetes represents a much needed and novel approach to the prevention and treatment of epidemics of type 2 diabetes and obesity, as well as improve the quality of life of those suffering from sleep disturbances.”

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Reason #5,348 You Need More Sleep . The “blue light” that smartphones produce has been linked to some pretty serious health issues. Great, so long as the late sleepers are also going to bed at a reasonable hour. Sleeping with too much daylight is not as restful as sleeping in the dark .

Improving sleep in adults at risk for heart disease, stroke, and diabetes represents a much needed and novel approach to the prevention and treatment of epidemics of type 2 diabetes and obesity, as well as improve the quality of life of those suffering from sleep disturbances.”

Although this is preliminary research, it does support the idea that you should avoid falling asleep on the couch and spending part—or most—of the night with the lights on and the TV blaring.

Here are the bedtime habits can interfere with a sound night’s sleep.

The post The Serious Reason You Need to Sleep in the Dark appeared first on Reader's Digest.

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usr: 1
This is interesting!