I was going to write something similar. I remember the first time I needed to pull an all-nighter in university to finish a project, and picked myself up a pack

I was going to write something similar. I remember the first time I needed to pull an all-nighter in university to finish a project, and picked myself up a packet of the Proplus caffeine pills which were in vogue at the time. Took a few during the night and didn’t notice a thing. Fast forward a few years and a buddy and I bought our first espresso machines. Experimenting making double espressos with different beans - after two or three he was totally wired, feeling unwell, and unable to sleep; I could pretty much sleep as normal. Two physiological effects that are fairly clear however: 1) Moderate appetite suppression – useful if intermittent fasting and hungry in the morning 2) Something in coffee is a fairly powerful stimulant of colonic motility...