The mental health and Internet addiction problems of adolescents and youth can not be ignored and need to be solved urgently. The behavior of watching "Mukbang" videos may be in a mediating position between the two, and its specific effects and mechanisms are still unclear. Based on the theory of use and satisfaction, this study will further explore the interactive relationship between "Mukbang" and mental health and Internet addiction from the perspective of adolescents and young Internet users. Thereby enriching research paths in related fields and providing theoretical basis for clinical mental health guidance or intervention.

Adolescence and Youth is a critical period for psychological quality training and personality shaping, and their mental health has always been the focus of health management for this population. With the rapid development of short videos and self-media, watching "Mukbang" is a behavioral way for these people to relieve anxiety, depression and other mental health problems. But watching "Mukbang" behaviors may have Internet addiction, and there is a high comorbidity rate between Internet addiction and mental health disorders. "Mukbang" is a newly developed online entertainment method. Its helpfulness in reducing psychological stress, relieving depression and other negative emotions, and the mechanism of action that aggravates the risk of Internet addiction is unknown. At present, the new crown epidemic is spreading all over the world, and the stress reactions such as fear, anxiety, sadness and anger brought to teenagers and young people will induce more psychological problems; and closed management has greatly increased the risk of such people. Internet addiction time, the detection rate of Internet addiction has also greatly increased, resulting in a serious vicious circle. Based on the theory of use and satisfaction, this research will adopt an exploratory time-series mixed design. First, qualitative research is used to explore the possible reasons and related experience of adolescents and young people watching "eating and broadcasting"; Potential related variables and quantitative indicators of watching "eating and broadcasting" behavior, further verify the correlation between "eating and broadcasting" behavior, Internet addiction and mental health; and explore the role of "eating and broadcasting" video watching behavior in mental health and Internet addiction. mediation between them. It provides a theoretical basis for promoting the healthy and psychological development of adolescents and young people, standardizing the management of "eating and broadcasting" videos, and correcting the correct guidance for preventing addiction to the Internet.

Inclusion Criteria:

• Internet users aged 14-35；
• Be able to read and communicate in Chinese.

Exclusion Criteria:

• Those who cannot complete communication due to serious mental or physical diseases such as deafness, unclear consciousness caused by mental illness, etc.

Adolescents and young adults