It appears that “shaken baby syndrome” was just one of the pieces of evidence that the state had in this case.
[1] https://en.wikipedia.org/wiki/Robert_Roberson_case?wprov=sft...
Obviously there are exceptions when you're physically ill, but for the most part I think this approach is a good one to keep in mind because it forces you to think how you can make even an off day a little better.
Link to podcast: https://podcasts.apple.com/us/podcast/spittin-chiclets-episo...
I encourage anyone to give it a try a few weeks and see how they feel. You may not realize what you thought is your baseline is in fact caused by caffeine sensitivity. I heard of some people being sensitive to caffeine but I never thought it would affect me, after all I did not have that bad of a reaction but it really built up and I had gotten used to it.