I've cut caffeine about once a year, usually after having a week or two of bad heartburn, and I cut just about everything that could trigger it for as long as I

I've cut caffeine about once a year, usually after having a week or two of bad heartburn, and I cut just about everything that could trigger it for as long as I can manage it. I tend to last about 2-3 weeks before going back to caffeine, and my brain is usually foggy for most of that. Less near the end, but my brain still seems to be less sharp the whole time. I do usually drink less caffeine when I start again, though, and gradually build back up again. My productivity has never gone down enough from not drinking coffee that it's been an issue at work, and I don't think it ever would.