Well the short answer is caffeine is a plants natural insecticide so by drinking caffeine you body reacts to it by sending out adrenaline, hence giving you energy.
Anywhere from zero to eighty milligrams of caffeine, depending on the flavor in question.
No, there is no caffeine in vodka. Vodka contains alcohol. Some fancy mixed drinks can contain caffeine, but it is not from vodka.
Generally, they are, as long as they do not have too much caffeine.
i think that energy drinks can effect you brain because it has to much caffeine in it and you can get to much of it in your system at one time just like alcohol.
Anything that already increases heart rate is dangerous to mix caffeine with. For example, energy drinks. Consuming energy drinks along w/ caffeine increases hear rate. Depending on how much of each you drink it could potentially be dangerous.
Tea has quite a lot of caffeine. Cola drinks also contain it, as well as many 'energy' drinks.
i think people add caffeine too soft drinks to make it more addicting.
nah they dont
Caffeine
Most food do not contain caffeine. Foods like colas, chocolate, tea and coffee have caffeinewhile not much else does.
Caffeine is contained in several plants, especially some plants used to prepare drinks - such as coffee, tee, guarana, yerba mate.