Electronic technology era, many people have lived a “night owl” life, especially energetic young people, is to stay up late playing electronic products as a routine. However, two hours before bedtime to use cell phones, tablet computers and other electronic products will inhibit melatonin secretion, causing insomnia, in the long run will cause endocrine disruption, women are prone to breast cancer. Researchers conducted a simulation experiment, allowing 13 volunteers to use tablet PCs to read, play games and watch movies, to explore the link between backlit screen electronics and melatonin secretion. The human body can secrete a large amount of melatonin during sleep, melatonin is the commander-in-chief of the body’s endocrine control, frequent insomnia will inevitably lead to endocrine disorders. Researchers found that volunteers play computer one hour, the body of melatonin reduction and stay in the sunlight for an hour comparable. And after playing for two hours, melatonin secretion decreased dramatically. Melatonin is secreted by the pineal gland and increases when night falls and light stimulation diminishes, and decreases when the light brightens. In another experiment, researchers divided volunteers into three groups. all three groups looked at a tablet screen in bright mode. The first two groups wore light-filtering glasses. The first group’s glasses filtered out other light, allowing only blue light from light-emitting diodes (LEDs) with a wavelength of 470 millimeters to enter the eye, which has a super-inhibitory effect on melatonin secretion. The second group had orange glasses that filtered short-wave radiation from the light, which inhibits melatonin secretion. The third group wore no glasses. The researchers used an optical measuring instrument to accurately record the wavelength and intensity of light received by the eyes, confirming that the wavelength of light affects melatonin secretion, the closer the eyes are to the display screen, the greater the impact. Many young people like to play computer before going to bed, on the microblogging. Research shows that playing backlit electronic products two hours before bedtime can reduce melatonin secretion by 22% …… Those night owls are a cause for concern, especially teenagers. Modern life is filled with backlit electronic products such as cell phones, televisions and tablet computers that emit short-wave light. At night, when the eyes are exposed to light sources, especially short-wave light sources, melatonin secretion is inhibited, slowed or stopped. Melatonin is the body’s “biological clock” that signals the body to go to sleep and promotes sleep. Decreased melatonin production can cause disruption of the biological clock, resulting in insomnia, endocrine disruption, and increased risk of diabetes and obesity. People with chronically suppressed melatonin production, such as night shift workers, may have an elevated risk of breast cancer. Finally: technological advances have allowed TV, computer and cell phone screens to become larger and brighter. The short-wave light emitted by these electronic products has become one of the factors that inhibit melatonin secretion and cause insomnia and endocrine disruption, so for the sake of your health, try to play as little as possible with your cell phone and other electronic products before bed.