I needed to hear that because apparently, I think (or I just realized) that my caffeine intake per day is way too quite high.
Lets see... what is caffeine?
Caffeine chemical structure
Caffeine is a biochemical that is produced exclusively in plant leaves, nuts and fruits of over 60 plants, including common tea (Camellia sinensis) leaves, coffee (Coffea arabica) and cocoa (Theobroma cacao) beans and kola (Cola acuminata) nuts and assorted berries. Caffeine also can be produced synthetically, and is commonly added to commercial drinks such as cola, sodas (pop), selected foods and diet products. This simple compound has significant biochemical and physiological effects, many beneficial and some, potentially, harmful (Reinhardt, 2009).