I drink a lot of coffee (3-4 ~ 10oz cups per day). I periodically stopped drinking any caffeine sources cold turkey for months (probably 6 or 7 times over the p

I drink a lot of coffee (3-4 ~ 10oz cups per day). I periodically stopped drinking any caffeine sources cold turkey for months (probably 6 or 7 times over the past decade). I’ve never experienced any form of side effect. No headaches, crashes, cravings, nothing. Likewise, when I resume drinking coffee again later, it takes the same 3-4 cups per day to feel any kind of impact. Similarly I can drink coffee all day, and often really enjoy an espresso after dinner instead of dessert, with zero impact on sleep. I don’t know if I am just a weirdo who can metabolize caffeine differently or what, but I’ve never had any kind of headache / jitters / withdrawal / strong craving / whatever, neither from drinking a lot of coffee or a little or switching between the two states over long or short periods of time.