In a new study, psychologists have found that smiling indeed makes people feel happier.
According to the study, if you are smiling, it does not necessarily indicate that you are happy.
According to the study, the nature of laughter for almost a decade and what it reveals about the evolution of human communication and cooperation.
Generosity makes people happier, even if they are only a little generous. People who act solely out of self-interest are less happy.
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