Slowly, scientific evidence is piling up showing that mental state has real impact on one’s physical state. A recent study concluded that thoughts can alter the expression of genes, though the causal channel of thoughts effecting hormone levels. This article draws together a number of studies, pointing out that many of the physical effects we see from medication, alcohol, or even environmental influence, may also come from the process of altering gene expression. Which suggests, to me, that we’re on the edge of accepting that health care isn’t as simple a “disease and treatment” formula as is assumed.