Because orthodox medicine does not have all the answers- or even most. There are MANY things that doctors don't know, cannot cure and do not know why we get. They will never admit to that, of course!! That is why so many of us try chiropractors, acupuncture, homeopathy, herbal medicine etc. Doctors can fix broken legs well. But everything else... the drugs they use nearly always end up creating other problems (again, which they will deny). A lot of people are just sick of drugs that only surpress symptoms and do not deal with causes. That is why people will try alternative medicine!