Whenever social networks are mentioned most people think of social interaction and relationships. Indeed these sites have played a foreground role in facilitating social interaction and relationship between various people around the world. The sites enabled people to communicate, share ideas, and provide opportunities for learning. Moreover, assessment of social network sites has mainly focused on the positive sides. However, the negative effects of social network sites have been ignored. This study will therefore look at the negative effects of social network sites. The effects of social network sites have been discussed in various contexts. Moreover, the implications of the effects are also known by most people in the community. Social isolation is one of the serious effects of social networking sites. Isolation has not only been associated with suicide, but also with other social problems such as mental illnesses, poor development of cognitive skills among the youths, and poor physical health. In this regard, the negative effects of social networking sites should not be trivialized since they can lead to loss of life (Masuda, Kurahashi and Onari 4). Suicide especially among the youths in the contemporary society has become a serious issue due to the increasing rates of deaths. Individuals who are addicted to social networking sites such as Facebook, MySpace, and Twitter have a lower tendency of interacting and associating with others in the physical world. Interaction with other people in the physical world such as peers and members of the family is important since individuals get the opportunity to share their problems. This also enables individuals to be identified with various social groupings in the society (Elphinston & Noler 4). Social isolation may create a negative perception where the isolated individuals tend to perceive themselves as social outcasts. Individuals in such situations face numerous difficulties in overcoming isolation. Therefore, inability to overcome separation from other members of various social groups may affect one’s mental condition and wellbeing. Social behavior greatly determines how people respond to such situations. For example, lack of association and identification with particular social groups can easily cause depression, hence increasing the tendency to commit suicide (Wolniczak et al. 6). On the other hand, individuals who interact freely with other people can easily identify various issues affecting them (Masuda, Kurahashi & Onari 3). Another effect of social networking sites is intrusion among the users, which consequently affect relationships between various people in the society. Facebook intrusion has become one of the common problems of social networking sites. It is associated with other problems such as distress, loss of trust between spouses, and loss of interest in social issues. Victims of Facebook intrusion may have difficulties in maintaining a healthy relationship due to lack of attention and satisfaction between the spouses (Elphinston & Noler 4). The situation may also lead to uncontrollable jealousy between individuals involved in a relationship. Facebook addiction causes relationship th