`  ==Aligning lead with article== Here are the changes I've made with the explanations: rm ``, but its scientific basis is not well-understood`` - several scientific explanations in the article, some quite well fleshed out. rm ``[It is believed that the patient's beliefs about what the placebo will do are linked to changes in the body's neurological regulatory systems] particularly in the higher cerebral cortex`` - The fMRI evidence in the cites activation in many subcortical areas. rm reference to ``homeostasis`` - never mentioned again. Does not really assist in explaining what the sympathetic and parasympathetic nervous systems are. rm ``The nature of the link is not yet clear.`` again, several theroies and nothing in science is ever 100% certain. rm ``Historians of medicine believe that placebo effects were responsible for the efficacy of most medicine until the twentieth century.`` I'm not sure what this is trying to say (Historians believe?) and there is no support for this within the article. I also did a little copy editing. We should probably also look at fleshing the lead out a bit to summarise the other sections such as the scientific explanations section and the conditions it works for. I'll try to do that later if no one else does.   `