what was caffeine originally used for
Caffeine is one of the oldest forms of stimuli know to the world, it is an organic substance found primarily found in coffee beans. Many people donât know that caffeine is actually a chemical formula and not a physical substance like coffee beans or tea leaves.he extracts from caffeine were first used by the stone Age people extracting caffeine from chewing on the bark, plants and seeds. Although the exact origins are uncertain one source notes the Chinese used to use it to restore mental alertness and increased energy.