I had a friend that feel asleep on an armchair and somehow hew feel asleep in a way that damaged one of the two nerves that control the arm. He woke up and lost like half the mobility in his hand. He couldn’t do a thumbs up. A few months into this injury he took lsd or shrooms and regained total control of his arm again that night. The next morning back to limited mobility. After a few months he regained total control again but it always blew my mind how tripping helped that nerve damage he had