I gave up caffeine in September, 2021. I was drinking typically two cups a day of filter coffee — sometimes more. Withdrawal lasted two weeks. Some of the wo

I gave up caffeine in September, 2021. I was drinking typically two cups a day of filter coffee — sometimes more. Withdrawal lasted two weeks. Some of the worst headaches of my life that later transitioned into overall body pains, but that passed eventually. There was a psychological component to withdrawal, but it was nowhere as bad as when I gave up cigarettes a long time ago. In my steady state today, I notice these differences being off caffeine: 1. easier time staying asleep and general better rested 2. easier to fall asleep 3. outside of age and health, I feel in someways body-wise as I did in my teens with less variability between high days and low days in terms of feeling of wellbeing 4. less trash and mess in the kitchen to clean up 5. less staining of the teeth (FWIW, my dentist said to me a month ago, "I don't tell this to patients very often, but you don't need to do anything differently in how you're caring for your teeth. Your teeth are the best they can be for your age.") 6. less likely to just load up on caffeine to push through some drudgerous project as an all-day thing 7. in the TMI space, but there's never a sense of bowel urgency What's not different: 1. work performance (so far as I can tell)