Why do I have to take a dump after everytime I drink coffee?

It's a diuretic

>>8508925

do you get the runny shits as well? thats my issue.

>>8508932
Yep

because it stimulates the rectosigmoid colon activity

i'm too lazy to actually google the physiology but probably some parasympathetic shit

>>8508925
The real question is why does different coffee have different effects, because for me at least the level of caffeine seems to be unimportant. There is one coffee machine in particular in my school that makes me run for the bathroom almost every single time I drink from it while at the same time I can chug espresso after espresso and not feel the same feeling of dynamite shits