You've seen the trope: a character strains their psychic powers and gets a nosebleed to show for it. But would this actually happen if psychic powers were real? Learn the hypothetical science in this classic episode of BrainStuff, based on this article: https://science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/psychic-nosebleed-powers-really-happen.htm