Negative thinking habits play a very important role in depression. Research shows depressed people tend to minimize their accomplishments, talents, and qualities. Happy people experience failure, disappointment, rejection, negative emotions, pain, and great sorrows, too, just like depressed people. But happy people keep a positive attitude by gracefully accepting sadness and suffering as normal parts of life, while doing what they can about their problems. This also makes them more pleasant to be around and improves their social lives. Part of happiness is a courageous choice of loving life in the face of suffering, a chosen position or view of things.