Methodology: A quantitative research approach and descriptive research design was adopted to conduct study. The non- probability purposive sampling technique was used to select 60 adolescents of selected schools of district Kangra, Himachal Pradesh. A Self- structured knowledge questionnaire was used to assess the level of knowledge. Analysis of collected data was done to the according to the objectives of the study and data analyzed by using descriptive and inferential statistics.

Results: The study shows that, out of 60 adolescents have 81.7% have good knowledge and 18.3% have average knowledge and 0.0% have poor knowledge regarding effect of social media.

Conclusion: This study concluded that 81.7% subjects have good knowledge, followed by 18.3% subjects had moderate knowledge and 0.0% subjects had poor knowledge. The significant association was present in the type of social media used and there was no significant association in other demographic variables including age, gender, class, residential location, type of social media use, duration, mother’s occupation network availability, pre-existing knowledge, if yes, source of information. The conclusion of the recent study is that some adolescents still need more knowledge regarding effect of social media on their health and academics for the betterment of their life.