Just an interesting anecdote. I used to drink 4 or more. Loved coffee. Didn’t want to give it up. But I did a 3 day water only fast. And after that, I didn’t really want coffee for the next few days. Then when I started again I could barely drink a whole cup. Now I’m just one cup in the morning. It’s very odd how quickly a 10 year habit evaporated. I had given up coffee before for a time and it was miserable and I just wanted to drink it again. But something with the fast rewired my brain. I wasn’t even doing it to give up coffee. I used to be a cool programmer, fueling code with coffee and deploying to production like a mad man. But, now I am just an old man, living at a moderate pace, writing code slowly until all my tests pass 😂