Violet lights are harmful to human health
Lamps and lanterns come in many colors nowadays, as everyone may know. In the city at night, the lights are colorful. When you talk about purple lights, you may think of ultraviolet rays. They are indeed in the same color system. There is a difference between ultraviolet light, so what is the harm to the human body from the purple light? What are the effects of lighting on human health? Many people don't know it well, so let's take a look at BENWEI LIGHTING.
Purple lights
Violet lights are harmful to the human body:
The city’s splendid night landscape lights, black lights, revolving lights, fluorescent lights, and flickering colored light sources installed in dance halls and nightclubs constitute colored light pollution. According to measurement, the intensity of ultraviolet light produced by black light lamp is much higher than that of sunlight, and its harmful effect on human body lasts for a long time. If people receive this kind of radiation for a long time, it can induce nosebleeds, tooth loss, cataracts, and even lead to leukemia and other cancers.
Colored light sources are dazzling, not only harmful to the eyes, but also interfere with the central nervous system of the brain, making people feel dizzy, nausea, vomiting, insomnia and other symptoms. Scientists’ latest research shows that color light pollution not only harms people’s physiological functions, but also affects people’s psychology. The measurement of "spectral light and chromaticity effect" shows that if the psychological effect of white light is 100, blue light is 152, purple light is 155, red light is 158, and black light is the highest, 187. If people are exposed to colored lights for a long time, the psychological accumulation effect will also cause fatigue, dizziness, loss of libido, impotence, irregular menstruation, neurasthenia and other physical and mental illnesses to varying degrees.
In addition, some scholars also divide light pollution into "outdoor visual environmental pollution", "indoor visual environmental pollution" and "partial visual environmental pollution" according to the size of the range affected by light pollution. Among them, outdoor visual environmental pollution includes building exterior walls, outdoor lighting, etc.; indoor visual environmental pollution includes indoor decoration, poor indoor light and color environment, etc.; local visual environmental pollution includes books, papers, and certain industrial products.
Purple lights
The impact of lighting on human health:
When your eyes are pierced by the light reflected by the glass curtain wall, you can instinctively raise your hand to cover your eyes or escape the light, but there is some light pollution and its harm, perhaps you are not aware of it. In recent years, disputes caused by light pollution have increased year by year, and its impact on health has to arouse our attention.
1. Lead to cataracts.
According to investigations and studies, the myopia rate of children who sleep on the night before the age of 2 is about 55%; while for children who sleep with the lights off, the rate of myopia is only about 10%. The harsh visual environment caused by light pollution is considered to be an important factor in the high incidence of myopia. More studies have shown that the incidence of cataracts is as high as 45% when working and living in a white bright polluted environment for a long time. Li Ying, chief physician of the Department of Ophthalmology of Peking Union Medical College Hospital, told reporters that if the lens is exposed to strong light or colored light for a long time, the function of the eye lens will be affected, and cataracts may result after injury. Therefore, you must avoid looking directly at the naked eye when encountering strong light.
2. Upset, anxious, unable to sleep.
Ms. Li, who lives on Nanjing West Road in the center of Shanghai, was disturbed by the neon lights of nearby high-rise buildings all night and had to find a sleep expert. "At first I couldn't sleep well, then I couldn't fall asleep, and then I was afraid, upset, and anxious even at night." Shi Ming, a sleep expert and deputy director of the Shanghai Insomnia Medical Cooperation Center of Traditional Chinese Medicine, said that people have their eyes closed when they sleep. , But the bright light will still pass through the eyelids and affect sleep. According to his clinical statistics, about 5% to 6% of insomnia are caused by environmental factors such as noise and light, of which light accounts for about 10%. "Once insomnia, the human body can't get enough rest, it will cause deeper health problems."
3. Affect hormone secretion and even lead to precocious puberty in children.
Dr. Russell Leiter discovered that the light on the retina at night reduces the production of melatonin, which is an important substance that regulates the circadian rhythm. Light plunders the night, disrupts the rhythm of hormone secretion, and may cause an imbalance in the normal cycle. Wu Xueyan, professor of the Department of Endocrinology at Peking Union Medical College Hospital, said that if children are exposed to too much light, the secretion of melatonin will be reduced, leading to precocious puberty or excessive genital development. The secretion of other hormones also has a circadian rhythm. For example, androgen reaches its highest point at 7 or 8 in the morning, and light will affect this. Light pollution can also affect people's mood, which indirectly affects hormone secretion.
Purple lights
4. Make people depressed.
Professor Randy Nelson of Ohio State University said at the American Neuroscience Annual Conference on January 21: Excessive exposure to light at night may cause depression. Nie Jing also said that light pollution can cause dizziness, upset, depression, physical fatigue and other symptoms similar to neurasthenia.
For people who work at night or have a long-term nightlife, the damage from light pollution is even greater. A study published in the Proceedings of the National Cancer Institute in the United States in 2001 showed that the longer women work at night, the greater the risk of breast cancer. Nie Jing also told reporters that long-term exposure to colored lights in dance halls can cause nosebleeds, tooth loss, cataracts, and even leukemia and other cancers. Colored light sources are not only harmful to the eyes, but also interfere with the central nervous system of the brain, causing symptoms such as nausea, vomiting, insomnia, inattention, and low libido.
The harm of purple light to human body and the impact of light on human health will stop here. I believe you should know more about it after reading it. The content is for your reference only, and I hope it can be helpful to you.
