system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does adderall calm down ADHD people and make non ADHD people hyperactive?
gpt
Imagine your brain is like a television set. When you are doing a task, your brain is set to a specific channel. It's receiving information, processing that information, and being active. The channel doesn't change often, unless you want it to. People who have a set of neurological issues we call ADHD have a television whose channel flips randomly, especially if the channel it's on doesn't have enough information to receive and process. ADHD medications add a level of background noise to the televisions reception, so that even if the program that is currently on doesn't have enough information, the channel won't change because the television is getting additional information. A person with a neurotypical brain, will instead have their television channels change more quickly with the medication because they are getting too much information for the television to handle.