According to epidemiological investigations and 20 animals studies, the University of Connecticut researchers proposed, in light of exposure, the brain's pineal gland at night in the secretion of melatonin can be interrupted. Therefore, the night lighting may be induced by a female breast cancer risk factors. The United States through the Harvard Medical School health nurses in the large-scale long-term follow-up study found that the female nurses often work at night and on the normal classes of women compared to the risk of breast cancer in the high 50 percent. Our survey data also shows that with a normal class of women compared to night work for women more than three years of high risk of breast cancer and 60 percent. In the blind, the blood of a particularly high concentration of melatonin, breast cancer incidence rate is very low. This phenomenon has aroused the concern of the researchers. According to epidemiological investigations and 20 animals studies, the University of Connecticut researchers proposed, in light of exposure, the brain's pineal gland at night in the secretion of melatonin can be interrupted. Therefore, the night lighting may be induced by a female breast cancer risk factors. As in the synthesis of melatonin in the presence of impurities have side effects, the researchers advocate the use of ordinary life, rather than synthetic melatonin added approach to the prevention of breast cancer. Such as: 1, at a fixed time every night to sleep. 2, the suppression of melatonin at night to avoid serving the material, such as drinking and taking β-blocker drugs. 3, the evening activities as much as possible with low light intensity lights.
