Often times, things don’t come without a reason. For example, some of the daily not very good behavioral habits, perhaps let the cancer quietly germinate. Lazy to go out in the sun prone to a variety of cancers The United States Harvard Medical School, Ou Fan Nuzzi that the sun can prevent cancer, the skin only after receiving ultraviolet radiation to produce vitamin D, vitamin D can eliminate the tumor formation of the blood environment, prevention of colon cancer, prostate cancer and so on. Infants and young children sun 15-30 minutes a day, the elderly sun 40-60 minutes a day, the rest of the population will try to go out to receive sunlight. Lazy to shave easy to suffer from respiratory cancer human respiratory discharge of a variety of harmful gases can be retained in the beard, coupled with the atmosphere contains a variety of heavy metal particles, automobile exhaust emissions of polycyclic aromatic hydrocarbons, lead, etc. will also be adsorbed by the beard, these harmful substances are likely to enter the respiratory tract. Russian researchers found that the beard on a variety of harmful substances, such as benzene, toluene, hydrosulfide, acetone, ammonia and so on. In addition, the dust and microorganisms in the air, carcinogens contained in smoke and lead in automobile exhaust are also easily adsorbed on the beard. If you can not shave diligently, these harmful substances are very easy to violate the respiratory tract, increasing the risk of cancer. Lazy to wash clothes easy to get kidney cancer Lazy people often send their clothes to the dry cleaner to clean, however, dry cleaning clothes will use a perchloroethylene chemical as an active solvent, which is damaging to the human nervous system, and if prolonged exposure to this poison may suffer from kidney cancer. Dry cleaning clothes, this chemical will be absorbed by the fiber to the clothes, in the dry air will be released from the clothes, but dry cleaners often put the clothes in the hut is not ventilated, resulting in perchloroethylene can not be fully evaporated, if you are eager to wear the body, easy to suck the toxic chemicals into the body, it is best to dry cleaned clothes hanging in the ventilation to dry 1 week before wearing. Lazy to turn off the lights to sleep easy to help the growth of cancer cells Habit of sleeping with the lights on children, the possibility of cancer is relatively large, because the incidence of childhood leukemia is related to the night exposure to light. Some studies have shown that 4 to 5 months of infants are susceptible to unnatural light, the light will make people’s physiological rhythms chaotic, inhibit the secretion of melatonin, and melatonin reduction is related to the growth of cancer cells. Lazy to go to the toilet to hold out bladder cancer Many people have the urge to urinate, but just do not want to put down the work at hand, hold back until you can no longer hold back before going to the toilet. Research has shown that this will first damage the sphincter of the bladder. Containing toxic substances in the urine can not be discharged in a timely manner, will cause cystitis, urethritis, inflammation upward infection will also induce nephritis. Researchers have found that people who have the habit of holding back urine, the risk of bladder cancer will increase by 3 to 5 times. Lazy brushing increases the risk of cancer Gargling once can reduce oral bacteria by 20%, and brushing once can reduce about 70%. Lazy brushing not only leads to ulcers, bleeding gums and periodontal disease, but also increases the risk of colds and aspiration pneumonia in the elderly. Japan Cancer Research Center study found that lazy brushing the chance of cancer is 2.5 times higher than people who brush their teeth twice a day. Brushing your teeth can reduce the risk of cancer by getting rid of streptococcus bacteria that remain in the mouth. It is best to brush your teeth twice a day, in the morning and at night.