Nowadays, it is impossible to ignore all the positive effects of technology in society. Improving communication skills thanks to new ways of communication provided by technology, strong social connectivity of people because of world networking, huge availability, and ease of obtaining information from various sources and access to information that has never been more accessible thanks to technological advances, are just some of benefits provided by technology development. But what is often overlooked are the downsides of increased use of technology and social media, especially for young people. Namely, with the advent of the Internet, the need to reflect about the content offered on the Internet decreases, which leads to a drastic drop in critical thinking about media content and the creation of large masses of people who are very easy to manipulate. A big problem for young people is also the fact that their social life largely depends on availability and popularity on social networks. Such pressure results in psychological problems and behavioral changes that children and young people face today. Therefore, the aim of this paper is to show to what extent and in what way social networks influence changes in adolescent behavior, primarily whether the increasing presence on social networks, according to adolescents themselves, leads to increased aggression, depression, lack of self-confidence, and corrective procedures on the body due to various trends and ideals of beauty imposed by the media themselves.