We’ve known about the placebo effects for over 200 years. That’s where doctors give you a pill containing no actual medicine, but you still get better. Recent studies have uncovered a broader range of benefits from the including alleviated pain, nausea, heart rate, hay fever, allergies, insomnia, depression, anxiety, fatigue, and even symptoms of Parkinson’s. Weirder yet, the characteristics of the pill — color, size, and shape — influence their effectiveness. Fake capsules work better than fake pills, and fake injections work best of all. The question is: Just how far can fake treatments go?

Learn more about your ad choices. Visit megaphone.fm/adchoices