Antiperspirants Cause Breast Cancer

The latest internet hoax proposes that blocking underarm sweat causes "toxins" to be retained in the lymph nodes, from which they somehow migrate into the breast and cause cancer. The authors never name these "toxins", and thus cannot present any proof that they might be carcinogens. No evidence links breast cancer to sweating, or antiperspirants. Breast cancer predates antiperspirants by many centuries. Furthermore, there's no ingredient in antiperspirants known to cause cancer.