Placebo studies are studies where some people get real medicine and some people get fake medicine. Fake medicine is sometimes called a placebo and it doesn’t have any special powers - it’s just something that looks like real medicine. Placebo studies are important because they help scientists figure out if a new medicine really works or not. Scientists compare the people who get the real medicine to the people who get the placebo, and see if the people who get the real medicine have better results than the people who get the placebo. This helps scientists figure out if the new medicine makes a difference.