Breast cancer causes, these eight are the most common!

Breast cancer is extremely harmful to women, and the disease has even taken away many precious lives. Therefore, female friends should do a good job in preventing breast cancer. Before that, they need to understand the various causes of breast cancer. Please see the expert’s introduction below.

1. Early menarche and late menopause

The relative risk of breast cancer increases 2.2 times when the age of menarche is younger than 12 years old compared with that of older than 17 years old. The risk of breast cancer increases 1 times for women who have menopause at the age of 55 or above compared with those who are less than 45 years old. Early menarche and late menopause are the two main risk factors for breast cancer.

2. Genetic factors

Studies have found that women whose mothers had bilateral breast cancer before menopause have a nine times higher risk of developing breast cancer than the average woman, and the average age at which the second generation of breast cancer patients develops breast cancer is about 10 years earlier than the average person. Women whose sisters have breast cancer have three times the risk of developing the disease. It should be emphasized that breast cancer is not directly inherited, but rather a kind of "cancer predisposition" inheritance. Relatives of breast cancer patients do not necessarily develop breast cancer, but they are more likely to develop breast cancer than the average person.

3. Marriage and childbearing

According to expert research, even if a woman is married, it is also an unfavorable factor if she has not given birth or if her first child is born after the age of 30. What is surprising is that the risk of breast cancer in unmarried people is twice that of married people. Experts believe that childbirth has a protective effect on female breasts, but this only applies to those who give birth to a full-term baby before the age of 30. Various studies in recent years have shown that breastfeeding also has a protective effect on the occurrence of breast cancer, which is mainly for premenopausal women.

4. Ionizing radiation

The breast is a tissue that is more sensitive to the carcinogenic activity of ionizing radiation. When women are young, they are in the active stage of breast mitosis and are most sensitive to the carcinogenic effects of ionizing radiation. The effects of ionizing radiation are cumulative, and multiple small-dose exposures are as dangerous as a single large-dose exposure, which has a dose-effect relationship. Among the survivors of the atomic bomb explosion in Nagasaki, Japan, the proportion of breast cancer has increased significantly. Those who have received chest radiotherapy as children and adolescents also have an increased chance of developing breast cancer when they grow up.

5. Unhealthy eating habits

Unhealthy eating habits significantly increase the risk of breast cancer. The incidence and mortality of breast cancer are strongly related to the amount of fat digested per capita. Some company employees have high incomes and high living standards, which has led to changes in their diet. People's diet is mainly based on meat and seafood products, gradually forming the now "popular" acidic physique. Most people have developed unscientific and unhealthy "high-calorie, high-fat" eating habits, resulting in a greatly increased incidence of breast cancer.

6. Unhealthy lifestyle

Some female white-collar workers who have been working in offices for a long time sit more and move less, lack exercise, and have little exposure to sunlight. If they exercise more and sweat more in the sun, Cole can help eliminate excess acidic waste from the body. But now more and more people travel by car, and the amount of exercise has been greatly reduced. In the long run, this will cause acidic metabolites to remain in the body for a long time, leading to acidification of the body. Most professional women have to wear bras for long periods of time due to their work, and rarely have the opportunity to "loosen" their breasts; some professional women, due to work pressure or the pursuit of career success, live a single or DINK life, without getting married or having children. These factors are all related to breast disease.

7. Depression and excessive stress

According to statistics, people with introverted and shy personalities and long-term depression are under increasing pressure. When the pressure is not well released, it will cause harm to the body and lead to acidification of the body. An unhappy life in the past is also a major cause of cancer. Especially young women in cities always face fierce competitive pressure. Their nerves are always tense and cannot be relieved, causing emotional instability and unpeace. These mental reasons combined with an unhealthy work and lifestyle can pose a further threat to the breasts.

8. Hormones

Breast cancer is related to endocrine imbalance in the human body. Among various endocrine factors, the most important are estrogen and progesterone. Research results show that estrogen stimulates excessive proliferation of breast glandular epithelial cells, which is an important cause of breast cancer. Frequent use of hormone products and menopausal hormone replacement therapy in women can increase the risk of breast cancer.