Caffeine is present in coffee, tea, soft drinks, chocolate, energy drinks, pure caffeine (powder or tablets), and some medications. Most people experience the stimulating effects of caffeine in 5-30 minutes. The symptoms can include increased heart rate, faster breathing rate, and an increase in mental alertness and physical energy. Individuals who have drunk too much alcohol often drink coffee “trying to sober up.” Their brains will experience the stimulating effects—however, caffeine will not reverse the cognitive deficits related to the effect of alcohol on the brain. Currently there are no guidelines for caffeine intake in children. It should be investigated if children show symptoms of irritability, insomnia or interrupted sleep, or stomach upsets.
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