According to the authors of Never Fear Cancer Again, although many factors contribute to developing cancer, there are only two fundamental causes for all disease: nutrient deficiency and toxicity (toxic overloads). Body-care products can be a major source of toxins. For example, in 2004 Dr. Phillippa Darbre found parabens (preservatives found in many underarm deodorants) in all malignant upper-outer quadrant breast tumors she analyzed. Parabens are known endocrine disruptors and suspeced carcinogens. While in 2012, L. Barr reported measurement of paraben concentrations in human breast tissue (in the Journal of Applied Tgoxicology). Other ingedients in deodorants have been found to be neurotoxic to the brain and immune sytem. You just might want to review the body-care products you are using and their list of ingredients.