The placebo effect works for almost any condition, except for cancer. Don't get me wrong, placebos can help combat the symptoms of cancer, but they are useless when it comes to fighting the cancer itself. But why is this?
Almost everyone knows something about the placebo effect, but here are 20 facts you probably haven't heard before.
A selection of top TED Talks on the placebo effect. What better way to introduce yourself to the subject?