Caffeine is a natural stimulant most commonly found in tea, coffee and cacao plants.
It works by stimulating the brain and central nervous system, helping you to stay alert and preventing the onset of tiredness.
Historians track the first brewed tea to as far back as 2737 BC.
Coffee was reportedly discovered many years later by an Ethiopian shepherd who noticed the extra energy it gave his goats.
Caffeinated drinks hit the market in the late 1800s and energy drinks soon followed.
now this is been used by athletes and bodybuilder in their pre workouts and Fat burners
Nowadays, 80% of the world’s population consumes a caffeinated product each day, and this number goes up to 90% for adults in North America.
Bottom Line : Caffeine is a natural stimulant consumed worldwide. Most people get it from coffee, tea, soft drinks, energy drinks or chocolate