Caffeine Can Also Make YouTired

Caffeine is a double edged sword. The effect of caffeine in stimulating the central nervous system is well established. Caffeine displaces sleep-inducing adenosine from its receptors, thereby producing wakefulness. Recent studies indicate an entirely interesting different picture. Caffeine can make you active if you are feeling tired. However, the effect is opposite when somebody is hardworking and active and caffeine actually makes you tired.