Are you a Harry Potter fan? If so, you might recall the following storyline from Harry Potter and the Half-Blood Prince. Harry’s friend, Ronald Weasley, is an enthusiastic hobby sportsman with ...

When you take a pill, you and your doctor hope it will work — and that helps it work. That's not a new idea. But now researchers say they know just how much of a drug's effect comes from the patient's ...

In many medical studies, even people who take “fake” treatments, such as sugar pills with no active ingredients, can still feel better. These are the puzzling “placebo effects”. They are common, ...