Coffee = Happy

chaiyawat p / CC

If you feel happy with a cup of joe in your hand, there’s a reason. German researchers found that participants who had the caffeine equivalent of two to three cups of coffee were able to point out positive words in a series, but couldn’t point out the negative ones as easily. It’s all about the caffeine, as caffeine can help boost mental function. The researchers believe that the caffeine stimulates the part of the brain associated with happiness.