With a couple of friends, we did a 0 caffeine challenge for a week. First to drink any caffeinated drink would have to get the first round of drinks after work on Friday.

Knowing the first couple of days I go without coffee I'm pretty slow, I started on the Saturday rather than the planned Monday.

On Tuesday I was getting tested for Covid because I was feeling feeverish (no actual fever), had cramps and intense pain in my back. By the end of the week I was feeling a little better. On Friday, we all had a cup of coffee together, no one had lost the challenge.

All that to say that never again will I underestimate the drug.