1. Beauty psychology is a subject that studies people's cognition, emotion, attitude and behavior towards beauty. This paper mainly focuses on people's psychological reaction to beauty and its significance, and discusses the influence of beauty on people's mental health and happiness. The research methods of beauty psychology include questionnaire survey, experimental research and psychological measurement.

2. Cosmetic medicine is a subject that studies cosmetic surgery and cosmetic treatment. Mainly through medical means to improve the appearance and image, including plastic surgery, skin beauty, laser beauty and so on. The research methods of cosmetic medicine include clinical observation, surgical practice and medical examination.