The aim of this paper is to shed light on the dark side of social
media and its negative effects on social cohesion. The study used
descriptive method to achieve its aims by classifying and explaining
the negative effects of social media into three categories: on
societies, on families & individuals - especially children, teenagers
& youth that affect directly or indirectly on social cohesion. The
findings showed that social media threatens directly the structural
features of the elements of social cohesion such as culture, identity,
language, citizenship and belonging. On the other hand, it affects
social cohesion indirectly through the appearance of phubbing,
syntopia phenomena, intellectual invasion & extremism, low
productivity & wasting official working hours, unemployment,
increasing divorce rates, families’ breakdown and marital infidelity.
In addition to the appearance of some mental and psychological
diseases for teenagers and children such as FOMO, anxiety,
Facebook depression, psychological loneliness, cyber bullying,
jealousy, violence, deviant behaviors, low School attainment & low
academic performance, besides other diseases like insomnia,
diabetes, obesity & visual problems.