Not bathing at all is perhaps a little extreme, but using less toxic soap might be a start. Apparently the general introduction to the populace of synthetic sulfonated detergents in the early 1960's rapidly killed off all the ammonia oxidizing bacteria (AOB) that were naturally found on human skin up until that time, according to Whitlock. It is these natural AOB flora on our skin that supply the body with nitric oxide. They are analogous to the natural friendly bacteria in our guts, that supply vitamins. Soaps made from synthetic sulfonated detergents are ubiquitous now, and are highly toxic to AOB bacteria. So synthetic sulfonated detergents wiped out our natural AOB skin flora - flora that had been with us for millions of year, throughout human evolution. As a consequence of this loss, our basal nitric oxide levels took a plunge, Whitlock says, and the loss of these commensal AOB flora is a major factor in the increase in autism since the 1960's, Whitlock thinks. He says that by re-introducing this natural skin flora, we can raise our nitric oxide levels back to an appropriate level, and perhaps treat autism and CFS. A fascinating theory.