It's a drug, it effects your behaviour/mood, you must have done some weird shit on it
I hate to be that guy, but, "source?" The espresso number "feels" a bit off, and some Internet searching agrees better with intuition:
According to USDA, 1oz of espresso is 63mg and 1C coffee is 92mg.
Just googling around, and both DDG and Google summary report 64mg/shot (with the obvious disclaimer about trusting AI summaries).