“’The short answer is no,’ Dr. Ted Gansler, . . . replied. There is no scientifically credible evidence of this, he said, and the proposed mechanism — that bras prevent elimination of toxins by blocking lymph flow — is not in line with scientific concepts of how breast cancer develops. Internet traffic on the issue is mostly inspired by one study with several scientific flaws, Dr. Gansler said. The study, never published in a peer-reviewed journal, did not adjust for known breast cancer risk factors that might be associated with bra-wearing behavior, like weight and age.
‘Because the idea of bras’ causing breast cancer is so scientifically implausible, it seems unlikely that researchers will ever spend their time and resources to test it in a real epidemiological study,’ Dr. Gansler said.