Positive psychology is a branch of psychology that studies human positive emotions, positive personality traits and positive behaviors. It emphasizes the positive aspects of human beings, pays attention to individual growth and happiness, and tries to promote human mental health and happiness through scientific research and practice. The core concepts of positive psychology include the following:

1. Positive emotions: Positive emotions refer to the positive emotions and emotions experienced by people, such as happiness, happiness and satisfaction.

2. Positive personality traits: Positive personality traits refer to the positive qualities and characteristics of individuals, such as optimism, self-confidence and courage.

3. Positive behavior: Positive behavior refers to individuals' positive actions and behaviors, such as helping others, charity, socializing, etc.

Through the study of these aspects, positive psychology explores people's internal driving force and positive strength, and promotes people's positive psychological state through intervention and training.

A small extension of noun explanation

1. Psychological well-being: Psychological well-being refers to the happiness and satisfaction that individuals feel, and is the core concept of positive psychology.

2. Prevention of mental illness: Positive psychology not only pays attention to individual mental health and happiness, but also includes methods and strategies to prevent and treat mental illness.

3. Psychological intervention: Psychological intervention refers to taking specific intervention methods and means to help individuals solve problems and improve their psychological state.