Is bra wearing related to breast cancer?
On the Internet, there are many opinions about the risk factors of breast cancer, and a lot of mixed information about true and false information, one of which is the statement that "bra causes cancer".
The toxins in the human body are mainly metabolized and cleared by the liver and kidneys. The function of the lymphatic system is to recover proteins, transport fats and other nutrients, regulate the fluid balance between plasma and tissue fluids, and also prevent microorganisms, including viruses and bacteria, from entering through lymphatic vessels; It does not have the effect of clearing these toxins. The occurrence of breast cancer is caused by the mutation of glandular epithelial cells of the breast, not by viruses and bacteria. As for the tightness of the bra, it really affects the blood and lymph circulation, and will cause discomfort to the body, but it will not lead to the occurrence of breast cancer.

So far, many scientific studies do not support the association between bra wearing and breast cancer. Although the United States has conducted an epidemiological survey on the relationship between the habit of wearing a bra and breast cancer among 5000 women, the research report released in 2009 pointed out that women wearing a bra are more likely to suffer from breast cancer than women without a bra. However, it must be noted that when researchers analyzed the results, they found that most women who did not wear bras were thin and had smaller breasts, while women with full or overweight breasts needed to wear bras to support their breasts. Excess fat and obesity themselves increase the risk of breast cancer.
To put it bluntly, the reason for the increased incidence of breast cancer among bra wearers is not bra, but obesity. Obesity is one of the key factors leading to breast cancer. As we all know, the estrogen level of obese people is higher than that of normal people, and the estrogen level rises. Sensitive tissues in the body get more estrogen stimulation, which increases the incidence rate of breast cancer.

There is no evidence that there is a causal relationship between bra and breast cancer. Female friends only need to choose the appropriate bra, pay special attention to the size of the bra when wearing it, the distance between the breasts and the bra, and it is best to accommodate 1-2 fingers; The best material for bras is pure cotton, as synthetic fiber materials have poor sweat absorption and breathability; Bras should be changed frequently, personal hygiene should be taken care of, and underwear should be changed in a timely manner, so it has no impact on health.