Do women take their sleep?

Sleeping in the light, like watching TV, is not healthy. This is known. But a study on women has now examined if artificial light during sleep can also lead to obesity.

Researchers at Research Triangle Park, North Carolina, now have one in the journal JAMA Internal Medicine Published study with women revealed that artificial light can make you fat at night and even lead to obesity ("obesity").

Obesity often causes chronic diseases

About 23% of women are obese, according to the World Health Organization (WHO). Overweight and obesity are crucial factors for chronic diseases such as diabetes and cancer.

US researchers do not see obesity in an unhealthy diet and lack of exercise: "An artificial night light at night (ALAN) can contribute to the pandemic of obesity."

Years of investigation with surprising results: ALAN can make you fat!

Over a five-year period, scientists at the National Institute of Health examined about 44,000 women aged 35 to 74 years. Over the past two years, they have evaluated the data: The results show that watching television and artificial light while sleeping in women is badociated with an increased risk of weight gain and obesity.

Weight gain of five kilograms

Compared to participants in completely darkened rooms, sleep with ALAN took five kilograms of weight and 10% of the value of BMI. Previous animal studies have also shown that nighttime exposure can have a negative effect on the day-night rhythm.

Disturbance of the day-night rhythm

The "clock genes" were removed in the study by permanent light irradiation and disrupted the "24-hour circadian rhythm". As a result, rodents also changed feeding behavior – the result was an increase in weight.

Consequences: stress hormones and more time to eat

In addition, ALAN from the environment, such as street lights and neon lights, has resulted in the suppression of the sleep hormone, "melatonin". For example, the "glucocorticoid" stress hormone has been produced for this purpose.

"Shorter sleep also adds more waking time, allowing more time to eat or increase energy," said Dale P. Sandler.

Obesity and obesity prevent in the dark

In order to prevent overweight and obesity, women must therefore observe healthy lifestyle habits, such as a vitamin-rich diet, and be physically active. These components can lead to a low level of stress.

The television and the bedside lamp as well as the smartphone must be displayed before going to bed. A sleep as quiet as possible thanks to a dark room is the best condition to start well the next day in recovery and fitness.

Why should not you sleep on the right side

Not only the duration of sleep, but also the sleeping position are important for a healthy life. This has now been proven by experts. Therefore, it is best to lie on the left side of the body: healthy during a proper sleep.