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Recently, medical researchers have confirmed that when there is light (lighting or poor shading, outdoor light penetration) will inhibit the secretion of a substance called melatonin in the human body, which will reduce the immune function of the human body. Frequent night shifts such as flight attendants, telecommunications, doctors, nurses, etc., the incidence of cancer is twice as high as that of normal people. Medical scientists warn that turning on the light to sleep not only affects the body's immunity, but also is prone to cancer.
The secretion of melatonin can inhibit the excitability of the human sympathetic nerve, causing the blood pressure to drop, the heart rate to slow down, the heart to breathe, the effect of strengthening immune function and poisoning cancer cells, but once the eye sees light, melatonin It will be suppressed, so if you are able to breathe in the environment that sleeps late at night, the immune function will decline, and you will be more likely to suffer from cancer.
Researchers at the Children's Leukemia Congress in London raised the relationship between increased incidence of childhood leukemia and exposure to light at night. Although researchers don't know much about the real causes of leukemia in children, they believe that environmental factors play a major negative role in children with leukemia. A research team led by Russell Wright, a professor at the University of Texas, said that people now spend much more time exposed to artificial light at night than they did 100 years ago.
To sleep comfortably and comfortably, you should create the necessary conditions and environment that are conducive to sleep; this includes no light interference, no food, no cold, no heat, and fresh air. The light in these five items is the first.
Therefore, in order to be free from light interference, it is necessary to have a curtain having good light shielding properties. One is that there are too many artificial light outdoors at night, and the other is that night-time friends can completely block the outdoor sun rays while sleeping during the day, creating a "night" effect.
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