A cup of coffee in the morning to wake up well, almost all of us do it. However, that stimulant effect is actually caused by withdrawal symptoms.
If you have not drunk coffee for a while, you can quickly suffer from the withdrawal symptoms from caffeine – including fatigue and headaches. By drinking coffee again, those symptoms disappear and you feel 'awake' again to become.
Alertness
Researchers from the University of Bristol compared the effect of caffeine in a group of frequent coffee drinkers and non-coffee drinkers. The alertness of the group of non-coffee drinkers didn't increase after ingesting caffeine, while that of coffee drinkers did decrease if they not drink coffee for a day †
Read also:luxury coffee for happiness >
(
