Caffeine and health

Caffeine is an alkaloid found in tea leaves, coffee seeds, cocoa, and nuts. Caffeine has a complex effect on the content of intracellular calcium. In large doses, caffeine stimulates the cerebral cortex, which is associated with its psychostimulating effect. The psychostimulating effect of caffeine is manifested in the fact that it increases mental and physical performance, reduces the feeling of fatigue, reduces the need for sleep. However, the effect of caffeine depends on the type of nervous activity. Caffeine has not only a psychostimulating, but also analeptic effect.