Day #1 with no caffeine report
The days started well. I had a good night sleep which gave me the courage to try this experiment. Without the caffeine my morning workout didn’t feel different (good). And then the start of the workday began with a strange calmness which I enjoyed very much (good). By the afternoon I was feeling flat. It wasn’t a lack of alertness, but rather a mood resembling a lack of care about anything. I went through the motions of doing my work. This was bad. The end of the day was aided by a warm sunny late afternoon which I used to sit by the lake in full sunshine for 30 minutes about ½ way through my 2.5 mile walk. My last FMD dinner (if you can call it that) ended without hunger or stress. I fell asleep easily and drugless and had another good night sleep.
I’m going to keep going caffeine-less to see where this leads me.
Update. It’s now day 4 of my no-caffeine experiment. I no longer feel a pull or desire to have caffeine but I am still dealing with tiredness in the afternoon.
Here is what Claude AI says about the process
By day 3 of a caffeine washout, your body is going through several key physiological changes:
Adenosine receptors are beginning to normalize. Caffeine blocks these receptors, and now they’re becoming more sensitive again, which can temporarily increase feelings of fatigue but will eventually restore normal energy regulation.
Blood pressure is likely decreasing as vasoconstriction effects fade. You might notice slightly lower readings if you monitor your blood pressure. (I have noticed this; I had to stop another experiment with citrulline to stop low BP)
Heart rate is typically returning to your natural baseline after caffeine’s stimulatory effects diminish. (My sleeping HR remains low after my FMD)
Brain chemistry is rebalancing, particularly dopamine systems that were affected by regular caffeine use. (Perhaps this is the “flat” feeling I had in day 1)
Sleep architecture is improving - you’re likely experiencing deeper sleep phases than when consuming caffeine regularly. (I feel this; also easier to fall back asleep after a bathroom visit)
By days 4-7, most people experience significant improvement in symptoms, with complete physiological readjustment typically occurring within 1-2 weeks.
This feels like it will stick. As to whether my life is better, time will tell.