Simply moving your facial muscles in a way that mimics a smile can trick your brain into a more positive state.

Amusement and pleasant surprises—and the laughter they can trigger—add texture to the fabric of daily life.

We know happiness can predict health and longevity, and happiness scales can be used to measure social progress and the success of public policies

Your attitude toward luck might influence how happy you are.

Everyday can feel as good as Friday