The reasons why cats run wildly at home:

1. It consumes physical energy. When cats are excited, they will vent their excess energy by running around like crazy.

2. Capture prey. New things in the home arouse cats' curiosity, leading to things like running quickly to chase these moving insects.

3. There are parasites. Cats have fleas, lice and other parasites on their bodies, which makes them feel uncomfortable, and they want to shake off the parasites by running.

4. Discomfort during estrus. When a cat is in estrus, it will be very uncomfortable physically and mentally. Running like crazy, this explosive movement, can relieve the cat's discomfort and release the desire caused by estrus.

5. Cognition disorder. When a cat gets older, it may be because it has cognitive impairment and suffers from Alzheimer's disease. Sometimes it becomes disoriented and often walks around in one place.

6. Excessive mental pressure. If the cat is running around the house, accompanied by excessive licking, loss of appetite, etc., then the cat may be under too much mental stress.