The main causes of the appearance of tumors were named scientists of the British Cancer Research Center. The article is published in the British Journal of Cancer.

According to their conclusion, the main cause of cancer is tobacco smoke. More than 12.4% of cancers in women and 17, 7% in men are caused by smoking.

In second place among the risk factors - overweight. It causes about 6.3 percent of the appearance of tumors a year and most often causes cancer of the intestines, kidneys, uterus and breast.

In third place - the excess of ultraviolet radiation. It's worth taking note of sunbathing lovers. 3.

8 percent of skin cancers could be avoided, given this factor.

Among the other factors affecting the occurrence of malignant tumors, scientists called alcohol abuse, environmental factors, in particular, polluted air, as well as a large amount of fiber in the diet.

Scientists noted that a healthy lifestyle is not yet a 100% guarantee that a person will not get sick with oncology. But to reduce the risk of disease, it will help.

Source: belta. by.