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Sleeping in the light while watching TV is unhealthy. This is known. A study on women has already been investigated whether artificial light in sleep can actually lead to weight gain.
Obesity by sleeping in artificial light
North Carolina Research Triangle Park researchers already have one in log JAMA Internal Medicine a published study with women found that artificial light can make you fat at night and even lead to obesity ("obesity").
Obesity is often the cause of chronic illness
About 23 percent of women are obese, according to the World Health Organization (WHO). Overweight and obesity are crucial factors for chronic conditions such as diabetes and cancer. US researchers see not only in an unhealthy diet and lack of exercise the causes of obesity: "One night exposure to artificial light (ALAN – artificial light at night) can contribute to the pandemic of obesity. "
Years of investigation with surprising results: ALAN can get you fat!
For a period of five years, researchers from the National Institutes of Health examined approximately 44,000 women between the ages of 35 and 74. Over the last two years, they have evaluated the data: Findings show that watching TV and artificial light while sleeping in women is associated with an increased risk of weight gain and obesity.
Weight gain five pounds
Compared to participants in completely darkened rooms, those sleeping with ALAN took five kilos weighing up to ten percent of the BMI value, too. Past animal studies have also shown that nighttime exposure can have a negative effect on the rhythm day-night.
Rhythm disturbance day-night
The so-called "clock genes" were suppressed in the study by constant light irradiation and disrupted the "circadian 24-hour rhythm". As a result, rodents also changed their eating behavior – the result was weight gain.
Consequences: Stress hormones and more eating time
Also, environmental ALANs, such as street lights and neon signs, have led to the suppression of the sleep hormone "melatonin". For example, the hormone "glucocorticoids" is produced for this purpose.
"Shorter sleep also adds more waking time, leaving more time to eat or increase energy," says Dale P. Sandler.
Obesity and obesity prevent from darkness
In order to prevent overweight and obesity, women must therefore observe healthy living habits such as a vitamin-rich diet and be physically active. These components can lead to low levels of stress.
The TV and night light as well as the smartphone should be displayed before bedtime. Sleeping as quietly as possible, thanks to a dark room, is the best prerequisite for starting the next day in recovery and fitness.
Why not sleep on the right side anymore
Not only the length of sleep, but also the position of sleep is important for a healthy life. This has already been proven by experts. Therefore, it is better to lie on the left side of the body: healthy through proper sleep.
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