Why do they put caffiene in drinks?

Question

Is there a reason? Like does the caffiene give it a certain flavor or something?

Answer 1

It isn't an added ingredient ... It's in the coffee / cocoa beans and tea leaves already.....

Answer 2

caffiene is pretty much a drug. people are addicted to it. so it incresses sales.

if you addicted to something, then you are going to buy it all of the time right?

Answer 3

for now day and age it is to keep every one awake

Answer 4

I do not think it has a flavor, but an effect.  It is a stimulant.  You get a jolt (actually the name of a drink).  Coffee and tea have caffiene naturally.