Scientists have found the best time to drink coffee
Biological organism is most susceptible to the effects of caffeine only a few hours after waking up, say U.S. neuroscientists, foreign media reported. "The maximum effect is achieved by the interaction of caffeine that substance with hormone cortisol regulating human biological clock," - explains neuroscientist at the University of Maryland (USA), Stephen Miller. About 7 to 9 am cortisol is at its peak, thanks to this man wakes up in the morning and is able to act consciously. If you drink coffee after waking up when the level of cortisol in the body and so is high enough, develop a tolerance to caffeine, the effectiveness of its impact is reduced. Thus, over time, you need more and more invigorating drink to wake up. After an hour or two after waking cortisol levels in the body starts to decrease, and then the coffee will come to the rescue. Drunk at the time or later a cup of coffee can increase the production of cortisol, causing us to wake up again.