Dressed to Kill is a 1995 book by Sydney Ross Singer and Soma Grismaijer that proposes a link between bras and breast cancer.

[1] Major medical organizations including the National Institutes of Health and the American Cancer Society have found no evidence that bra-wearing increases breast-cancer risk.

They believed that constriction from tightly worn bras inhibited the proper functioning of the lymphatic system and led to a buildup of fluid within the breast tissue.

The data presented in the book have never been published in a peer-reviewed journal, and researchers identified a number of methodological flaws in the authors' claims.

[4] After publishing Dressed to Kill, Singer and Grismaijer wrote Get It Off!, another book about the dangers of wearing bras,[5] and a series of other books in which they claim that sleeping on a tilted bed can prevent Alzheimer's disease and impotence;[6] that frequent defecation and urination can prevent many conditions such as prostate enlargement and menopausal symptoms;[7] and that high blood pressure is a "major medical scam" because "blood pressure measurements can be whatever the doctor wants them to be.