The document discusses 5 tips for increasing happiness based on psychological research. It first outlines factors that contribute to happiness, including genetics, life circumstances, and intentional activities. It then discusses benefits of happiness such as confidence, health, and career and social success. The 5 tips are to say thank you weekly, be kind to others, have brief social interactions, smile more, and simplify decisions to avoid choice overload and regret. Practicing these tips can increase happiness by strengthening social connections and promoting gratitude, kindness, and satisfaction.