Drinking coffee is widely known to be refreshing, but a study shows that you don't have to drink coffee to be refreshed. You just have to go around the coffee shop and smell the aroma of the coffee.
The study, a collaboration of scientists from many countries, found that inhaling warm, strong coffee aromas can alter the activity of certain genes in the brain and reduce the effects of lack of sleep.
The researchers asked laboratory mice to inhale the aroma of coffee and found that sleep-deprived mice expressed antioxidant proteins in their brains that protect nerve cells from stress.
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