According to Susan G. Komen Foundation and the American Cancer Society the connection of wearing bra with cancer is just a myth. However, several research studies show the opposite. There is actually a strong connection between these two. Wearing a bra for a longer period during the day can actually cause cancer.
Some scientists are requesting boycott of Komen and the ACS explaining that this false cover-up is costing lives.
Medical anthropologists Sydney Ross Singer and Soma Grismaijer say that the issue with bras is that they decrease the flow of lymphatic fluid that results in retaining toxins in the breast that have no way out. They make comparison to the swelling of feet and ankles that happens during long flights because the lymphatic fluid pools in the lower extremities and can’t circulate.
The co-authors of Dressed To Kill: The Link Between Breast Cancer and Bras, Singer and Grismaijer claim that wearing a bra for more than 12 hours a day rises the risk of getting breast cancer.
Women who sleep in their bras have a 75 % chance of getting breast cancer while women who wear bra 24-7 are 125 more likely to get breast cancer than those who seldom or almost never wear a bra.