That's because it's really just the caffeine causing a small adrenaline release. A lot of people don't realize that, I suspect. It's also why it can make you ha

That's because it's really just the caffeine causing a small adrenaline release. A lot of people don't realize that, I suspect. It's also why it can make you have to take a dump immediately. Caffeine doesn't amp you up, it just causes your body to release a tiny bit of adrenaline which is what amps you up. I have no clue what Mate does.