Different people define happiness in different ways, but it’s generally a feeling of well-being. Happiness can be a momentary pleasure, like the feeling you get when you’re laughing with friends or playing with a pet. It can also be a broader sense of contentment, such as the satisfaction you feel when you think of your life’s accomplishments or how fortunate you are to have a wide circle of friends and loved ones. Research shows that with a change of attitude and perspective, it is possible to increase your happiness and sense of well-being.