Americans are happier when the gap between rich and poor is smaller.
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Smells in the air can color your first impression of someone, and some scents, like flowers, can even make you friendlier to strangers.
Attending plays, visiting museums and going to concerts is linked with happiness, especially in men.
Patients with major depressive disorder fared better than non-depressed counterparts on a decision-making task, one possible upside to lower mental health.
Americans are feeling more negative about their personal finances than they have in four decades, with many saying the situation has gotten worse rather than better, according to a new study.
An unprecedented lifelong study of 1,500 children finds that the goody-goodies outlived the class clowns.