Background: The use of social media among young adults show negative health effects and most detrimental are mental health and well-being. There is a great risk of developing an addiction and that the target group who use social media to a large extent can feel more socially isolated. Aim: The purpose of the study was to describe how young adults between the ages of 17 and 20 felt that the use of social media affects their activity balance. Method: Qualitative design with semi-structured interviews was used as method. Intentional selection and network selection were used in which ten participants participated. The study used a qualitative content analysis in data processing. Results: The common depiction was that social media and mobile use affected sleep, when you fell asleep but allowed communication between friends and family. Conclusion: The use of social media stole time from other activities but was also integrated into participants' everyday lives