system
Given the following post, respond as if you're commenting on Reddit:
human
[Stranger Things] When a psychic uses their ability, they often get a nosebleed. What is happening here?

Why are psychic powers so incompatible with having intact blood vessels in your nose?
gpt
Overstimulation of the brain. Results in elevated blood pressure and potential for a stroke. The sinus cavity has a lot of blood vessels running through it so will begin bleeding before the larger vessels in the brain would.