How much of the sensations we feel is determined by our physical bodies? Maybe our minds play a bigger role than we know. I’ll see if people can be tricked into feeling intense physical pain, even though it’s all in their heads. I’ll also look at a machine that makes it possible for you to tickle yourself, and I’ll show you a weird physical illusion you can do at home. Available with YouTube Premium - https://www.youtube.com/premium/originals. To see if Premium is available in your country, click here: https://goo.gl/A3HtfP