University of Montreal, Canada September 1 website reported that the university research studies have shown that being overweight or smoking women are more vulnerable to breast cancer, but moderate physical activity can reduce the prevalence of this cancer risk. Related research results published in the recent “Cancer Epidemiology Bulletin” on the.
Reported that the study is unique in that, researchers will have the BRCA1 and BRCA2 gene mutation excluded from the study of women outside, but will study the focus on lifestyle – such as smoking, exercise, nutrition and weight, prevalence of breast cancer risk impact. BRCA1 and BRCA2 are breast cancer susceptibility genes, gene mutations of these two women vulnerable to breast cancer. BRCA1 and BRCA2 mutations in French Canadian women are common, and their studies are the first time, these two factors, genetic variation removed away, even though all of their object of study are the first generation direct descendant of the French colonialists.
The study found that after 20 years of age, female weight gain can increase their risk of breast cancer. If the overweight 15.5 kilograms, the sick will be an average increase of 68% probability. Probability of obesity lead to disease sooner or later, the size and weight gain: a 30-year-old woman after 10 kilograms of weight gain after 40 years of age or an increase of 5.5 kg, the risk of breast cancer for women in a stable body weight twice; and If after the 50-year-old reached the maximum body mass index, suffering from breast cancer would increase three-fold.
Their study also found that smoking may increase the risk of breast cancer risk. For 9 consecutive years of smoking a pack of cigarettes a day for women, their risk of breast cancer will increase 59%. Although the effects of smoking on menopausal women in the impact will be reduced, but still reached 50%. The relationship between smoking and breast cancer remains to be further studied.
Researchers survey also showed that moderate physical exercise can reduce the prevalence of breast cancer risk of 52%, which is pre-menopausal or post-menopausal women alike. The women who do intense sports will also reduce disease risk, but the difference was not significant. This is because the more enduring moderate physical exercise, while the often violent sports are easy to break.
Cancer is a complex disease, its incubation period may be as long as several years. Therefore, greater attention to controllable factors, advocating a healthy lifestyle, pay attention to weight, avoid smoking, but also to hard training.
