The role of caffeine powder is reflected in two aspects: brain and body.

For the brain, caffeine is an agonist of the central nervous system, which can antagonize adenosine receptors; in the brain, adenosine binds to nerve cell receptors, thereby affecting the working speed of nerve cells; the structure of caffeine and adenosine Similar to glycosides, they replace adenosine and combine with nerve cells to prevent adenosine from affecting the speed of the nervous system; nerve cells combined with caffeine are like chicken blood. The pituitary gland will notify when it senses this state of excitement. The hypothalamus releases adrenaline (a kind of emergency hormone, which is produced under excitement, so that the body produces more energy for stress); at the same time, caffeine can also promote the release of dopamine in the brain, which brings satisfaction.

For the body, caffeine powder can inhibit phosphodiesterase (PDE). In the cell, PED can decompose cyclic adenosine monophosphate (cAMP), a very important physiologically active substance with signal transmission function, also known as the second Messenger); and caffeine preserves the level of cAMP by inhibiting PDE, thereby enhancing the transmission of information between cells, which is of great help in improving human cognition, response, memory, and other functions. The overall result that caffeine brings to the body is: promote the secretion of norepinephrine, adrenaline, and dopamine; these hormones will cause the heart rate to rise, the heart contraction, blood vessel contraction, trachea, and pupil dilation, and lipolysis accelerate.