system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does my cat sometimes run around the house like a maniac?
gpt
Cats are made for a world that punishes unecessary use of energy. They sleep to save up energy for their hunt, usually hunting is done at night. In a domestic enviroment the cat doesnt "need" to hunt but its energysaving ways are hardwired.


All that energy needs to go somewhere and they will handle it by running around like crazy furballs on speed. In some cases it will help to play more with your cat, letting it use its huntingreserves.