City people with hypertension, diabetes and other chronic diseases continue to increase, and light pollution on melatonin suppression, the experts advise:

When night fell, the largest city in a variety of light, into a night sky without indoor, fluorescent, daylight energy saving light as bright as day; outdoor, neon lights, laser light show, flashing a huge advertising screen overnight.

When city people do not enjoy the night-day modern life, it is also suffering with insomnia, hypertension, diabetes and cancer and other chronic problems. July 16, Tongji Medical College, Huazhong University of Science and Environmental Medicine expert Professor Wang Aiguo an interview said the rising incidence of chronic diseases, and the bright city lights inhibit the body’s secretion of melatonin are not unrelated. He called upon people from a health point of view: away from light pollution, warm home lighting or incandescent lamps as well.

Blue-white light like a “chicken blood” exciting but also hazardous to health

As the saying goes “three-year-old before waking up, after a three-year-old sleep.” TUNG 27-year-old was a graphic designer, suffering from insomnia and pain. He

Said, because of work requirements, whether it is in the unit or at home, every night facing the blue computer screen, shaking his head as daylight fluorescent lamps. “Every day is 0230 not sleep three, and sometimes work until midnight – two o’clock in the home, although very tired, but excited can not sleep.”

“In the past people person than it is now less insomnia, rural people who sleep less than the city, very important – reason is because the use of different lights.” Aiguo that melatonin is the pineal gland by the brain, not day and night ~ stop the kind of secreted hormones to help people sleep, the hormone secreted at night, the highest, but it will inhibit the production of light. Night indoor bright light, especially fluorescent, daylight saving lamps emit blue light, the most likely to suppress melatonin secretion, and warm incandescent light, melatonin secretion is of little effect.

Experimental studies had found that the United States, before going to bed eight hours in energy-saving fluorescent lights and sunlight

People under the blue and white light, and in the warm light of incandescent and other than people, melatonin secretion by 50% of sleep time by 90 minutes.

“People before going to stay in the blue and white light for two hours, melatonin secretion is reduced, causing excitement, insomnia, but also lead to increased risk from many diseases.” Aiguo said, the main harm is done in:

More blue light also make people more alert, improve their body temperature and heart rate, causing high blood pressure;

Melatonin secretion, can lead to breast cancer, prostate cancer and other cancer risk increased by 30%;

Melatonin receptor gene with type 2 diabetes is closely related to melatonin secretion, can increase the risk of type 2 diabetes risk;

Blue and white laser light and melatonin secretion, may lead to migraine headaches, exacerbated by a series of existing skin problems.