Caffeine 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 is potent for enhancing both physical performance and cognition.
Caffeine (chemically referred to as 1,3,7-trimethylxanthine)
- Increases alertness and motivation
- Enhances both physical performance and cognition
- Allows you to train harder and longer
- Studies on Caffeine: https://examine.com/supplements/caffeine/
- Jackman, M., Wendling, P., Friars, D., & Graham, T. E. (1996). Metabolic, catecholamine, and endurance responses to caffeine during intense exercise. Journal of applied physiology, 81(4), 1658-1663.
- Poisner, A. M. (1973). Caffeine–Induced Catecholamine Secretion: Similarity to Caffeine–Induced Muscle Contraction. Proceedings of the Society for Experimental Biology and Medicine, 142(1), 103-105.
- Kahathuduwa, C. N., Dassanayake, T. L., Amarakoon, A. T., & Weerasinghe, V. S. (2017). Acute effects of theanine, caffeine and theanine–caffeine combination on attention. Nutritional neuroscience, 20(6), 369-377.