In a shock to no one, least of all those of us who lap at the sweet teat of coffee every day, a new study has found a positive association between a.m. caffeine consumption and overall mood.

In a study from Bielefeld University in Germany and the University of Warwick in England, regular caffeine consumers immediately reported feeling happier and more enthusiastic after a cup of joe or another caffeinated beverage, a joy that lingered for 2.5 hours.

This bona fide bliss boost was more pronounced in the morning than later in the day, according to the study published this month in the journal Scientific Reports . 3

More minor effects were observed for feelings of overall contentment and reduced sadness.

“Around 80% of adults worldwide consume caffeinated beverages, and the use

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