I got artblock. The writing idea stopped. And there is no real desire to read. My three main hobbies have been extinguished for now.

I think I can anticipate this by fasting.

May I hazard a guess? I thought about how humans have the ability to believe in falsehood and disbelieve in truth. In order to maintain sanity.

Having a brain can cause brain cancer. There's so many other factor, but sure you can't dismiss having a brain. Not using it doesn't count, you still have it.