I build tolerance to caffeine very quickly for some reason. One night I drank two redbulls so I could finish a project (I had been drinking a lot of coffee and energy drinks during that period) and decided to take a quick nap before going into crunch mode and ended up sleeping the entire night.

I had a redbull yesterday at 17:30 and fell asleep with no problem at 22:30.

If I want the true effects of the energy drinks I have to use them sparingly or else my tolerance ramps up and it doesn’t give me the energy buzz but kinda makes me sleepy...