Caffeine (chemically referred to as 1,3,7-trimethylxanthine) is an organic substance that naturally occurs in various plants, particularly cacao beans, coffee beans, and tea leaves. Caffeine is a natural stimulant of the central nervous system (CNS) and heart, acting as a phosphodiesterase (PDE) and acetylcholinesterase (ACE) inhibitor.
Caffeine also effectively increases the activity of the neurotransmitter acetylcholine, which is responsible for supporting cognitive function and focus. As such, caffeine is potent for enhancing both physical performance and cognition.
Research demonstrates that athletes and trainees experience significant reductions in rate of perceived exertion (RPE) when they take caffeine before intense exercise. In other words, using caffeine allows you to train harder and longer.
Moreover, caffeine increases production of catecholamines, particularly adrenaline and dopamine, thereby keeping you awake, alert, and motivated to conquer the day. These benefits make caffeine a great supplement for gym-goers, workaholics, students, and general health enthusiasts.