First, turning on the light during sleep affects heart rehabilitation.
In a study funded by the National Institutes of Health, neuroscientists from the University of Texas at Austin and the University of West Virginia School of Medicine found that white light at night (usually used to illuminate wards) was associated with inflammation, brain cell death and high mortality of heart patients.
The research team first reconstructed cardiac arrest with animal models, and let three groups of participants spend the night in dim red light, dim white light and darkness respectively. After seven nights, the researchers assessed their health.
The results show that exposure to white light at night will lead to many adverse consequences: the mortality of a group of participants exposed to white light at night increases, while the group exposed to red light is no different from the group spent in the dark. Researchers believe that exposure to white light at night will affect the hippocampus (the part of the brain that plays a key role in memory formation) and cause more serious inflammatory reactions.
Second, turning on the light to sleep can easily lead to obesity.
Researchers say that night lighting can make experimental mice gain weight quickly. During the eight-week study, compared with the experimental mice in the dark environment at night, the experimental mice in the light environment at night gained 50% weight. All the experimental mice had the same amount of food and food. The difference is that mice exposed to light at night eat 55% more during the usual rest period.
Professor Fang Ken said that this study has not been tested on human beings, but the results of the study have great enlightenment to human beings. She said: "If you eat at the wrong time of the day, or eat during physical rest, your metabolism will be disordered, which will lead to weight gain."
Third, turning on the light to sleep will disturb the biological clock.
Professor Fang Ken explained that night lighting will disturb the circadian rhythm of the human body, leading to the inversion of black and white. Many scholars have pointed out that according to the biological rhythm of people's psychological, intellectual and physical activities, arranging a day, a week, a month and a year's work and rest system can improve work efficiency and academic performance, reduce fatigue and prevent diseases and accidents.
On the other hand, if you suddenly don't arrange your work and rest according to the rhythm of your internal biological clock, people will feel physically tired and mentally uncomfortable.
Fourth, turning on the light to sleep can lead to insomnia.
A study published in the British journal Physiological Report shows that melatonin is a hormone that can promote sleep. Exposure to strong light during sleep may cause the human body to stop producing melatonin, which in turn affects the quality of sleep and leads to insomnia.
5. Turning on the light to sleep can induce depression.
In an interview with Life Times, Shi Ming, deputy director of Shanghai Medical Cooperation Center for Insomnia of Traditional Chinese Medicine, pointed out that if you sleep in a bedroom with too strong light, your biological clock and endocrine will be disordered, which will cause some sleep problems, change your mood in the long run and increase your chances of suffering from depression.
People's Network-Like to sleep with the lights on? The bedroom is too bright or leads to obesity, insomnia and depression.
People's Network-Turning on the light while sleeping affects cardiac rehabilitation
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