Caffeine, as an inhibitor of cAMP phosphodiesterase (an enzyme), protects cAMP from destruction. Epinephrine as a source of energy in brain cells uses cAMP, and since Under the influence of caffeine, the amount of cAMP increases, and the stimulating effect of adrenaline on brain cells is enhanced and prolonged.
Caffeine is similar in chemical structure to adenosine. Adenosine is a factor that inhibits arousal processes in the brain, so when adenosine receptors are blocked by caffeine molecules, the inhibitory effect of adenosine on brain cells will be absent. With prolonged use of caffeine, new adenosine receptors can form in brain cells and the effect of caffeine gradually decreases. At the same time, when caffeine is suddenly stopped, adenosine occupies all available receptors, which can lead to increased inhibition with the phenomena of fatigue, drowsiness, depression, etc.
Psychostimulating properties of caffeine. Caffeine has a particularly pronounced direct stimulating effect on the cerebral cortex. Caffeine stimulates mental activity, increases mental and physical performance, motor activity, and shortens reaction time. After taking it, cheerfulness appears, fatigue and drowsiness are temporarily eliminated or reduced. Improves mood, ability to perceive external stimuli, psychomotor activity. Reduces the feeling of fatigue, increases physical and mental performance (especially when tired), temporarily reduces the need for sleep. Large doses can, however, lead to the depletion of nerve cells.
The effect on higher nervous activity largely depends on the dose of caffeine and the type of nervous system. In small doses, caffeine has a stimulating effect, in large doses – depressing.
Very positive, based on my empirical experience)) but seriously, doctors do not have a clear answer to this question. Some people see caffeine as a drug that encourages the brain to stay awake. and others talk about its real useful properties.�
However, I personally can't live without a cup of Americano.
Caffeine, as an inhibitor of cAMP phosphodiesterase (an enzyme), protects cAMP from destruction. Epinephrine as a source of energy in brain cells uses cAMP, and since Under the influence of caffeine, the amount of cAMP increases, and the stimulating effect of adrenaline on brain cells is enhanced and prolonged.
Caffeine is similar in chemical structure to adenosine. Adenosine is a factor that inhibits arousal processes in the brain, so when adenosine receptors are blocked by caffeine molecules, the inhibitory effect of adenosine on brain cells will be absent.
With prolonged use of caffeine, new adenosine receptors can form in brain cells and the effect of caffeine gradually decreases. At the same time, when caffeine is suddenly stopped, adenosine occupies all available receptors, which can lead to increased inhibition with the phenomena of fatigue, drowsiness, depression, etc.
Psychostimulating properties of caffeine. Caffeine has a particularly pronounced direct stimulating effect on the cerebral cortex. Caffeine stimulates mental activity, increases mental and physical performance, motor activity, and shortens reaction time. After taking it, cheerfulness appears, fatigue and drowsiness are temporarily eliminated or reduced. Improves mood, ability to perceive external stimuli, psychomotor activity. Reduces the feeling of fatigue, increases physical and mental performance (especially when tired), temporarily reduces the need for sleep. Large doses can, however, lead to the depletion of nerve cells.
The effect on higher nervous activity largely depends on the dose of caffeine and the type of nervous system. In small doses, caffeine has a stimulating effect, in large doses – depressing.
Very positive, based on my empirical experience)) but seriously, doctors do not have a clear answer to this question. Some people see caffeine as a drug that encourages the brain to stay awake. and others talk about its real useful properties.�
However, I personally can't live without a cup of Americano.