Never Let Them See You Sweat!

Any attempt to artificially prevent perspiration is very unhealthy because perspiration is the Maker's method of safely cooling the body while excreting numerous toxins. Suppressing this natural sweat response in your underarms or other areas blocks the body's cleansing process and the natural flow of the lymphatic system. Interference in normal lymphatic function may increase the risk of breast cancer. The products most often used to stop perspiration contain forms of aluminum, which has been liked to Alzheimer's disease or other neurological problems; triclosan, an antimicrobial absorbed through the skin that poses some risk to the liver; and zirconium-based compounds that can cause underarm granulomas.

...so, keep away from Aluminum based deodorants! Information is by Jordan Rubin.

You can find healthy, organic deodorants at this site: http://thespiritoflife.mionegroup.com/MainSite/Index.aspx