Surveys have shown that friends who work under the lights for long periods of time are susceptible to leukemia. Childhood leukemia has accounted for the largest proportion of leukemia patients in recent years. There are many factors in the development of leukemia, and according to research, there is a relationship between the increased incidence of childhood leukemia and exposure to lights at night. Researchers have proposed a relationship between the increased incidence of childhood leukemia and exposure to lights at night. Although researchers do not know much about the real causes of childhood leukemia at this time, they believe that environmental factors play a large negative role in children developing leukemia. People are now exposed to much more artificial light at night than they were 100 years ago. Working at night defies the natural laws of society, and light at night throws into disarray the natural physiological rhythms, the biological clock that controls the biological processes that circulate around the clock in animals and plants 24 hours a day. This disruption inhibits the normal secretion of melatonin at night. Melatonin secretion is concentrated between the hours of 9 pm and 8 am. A decrease in melanin has been associated with cancer cell growth and its proliferation. We grow in an environment that is either light or dark. Melatonin increases sharply at night, which helps the body rest and metabolize. There is still a qualitative difference between artificial light and sunlight. If people are exposed to artificial light at night, then their ability to secrete melatonin is limited. Once you go to bed, you should turn off the lights until you wake up the next morning. Without melatonin, the growth of cancer cells and the rate of DNA damage by cancer cells is accelerated. As an antioxidant, melanin protects DNA from damage caused by oxidation. And once damaged, the DNA may mutate and there is a risk of cancer.” The expert described that while there is no clear evidence that too much artificial light is to blame for the increased incidence of leukemia in children (especially in developed countries), it is indeed a very likely cause. People take the use of electric light for granted, he said, but they don’t think about it as a drug and an environmental pollutant. Too much electric light does have an effect, and one should always be careful about using electric light throughout one’s life, and not sleep with the lights on at night. Children should not be allowed to sleep with the lights on, and you should likewise be careful to keep the lights on as little as possible at night. Research data shows that some people who work under electric light at night have a higher chance of developing breast cancer than the average person. Studies have also shown that blind people are generally less likely to develop cancer. Because blind people do not use lights at night, the process of melanin production is not affected. For those who regularly turn on lights at night, stay up late, and work night shifts have a uniform consequence: they disrupt melatonin production in the body. Melatonin is an antioxidant that is active between 9 pm and 8 am at night, and it works to protect DNA from oxidative damage, inhibit cancerous cells, and stop and repair cancerous events. But if you stay awake at night, disrupting the body’s normal biological clock pattern and receiving artificial light, making the chances of cancers such as leukemia, breast cancer and prostate cancer increase. Experts remind us that we should try to go to bed before ten o’clock at night and turn off the lights before going to bed, so that the body’s natural secretion of melanin and more importantly, follow the natural laws of human development, and here’s wishing you all to stay away from leukemia.