Part of it is probably also the caffeine addiction on top of it.

You have them addicted to everything in there, caffeine, the sugar, the fact that a lot of the drinks on there are a thousand calories.

Our body easily gets addicted to high calorie foods, because of a time when food was scarce.

I think it really is just the fact that they are high sugar calorie bombs, that give people a boost of energy, so their body thinks it's a good thing, when it's really killing all of them.