Friendships formed in teenage last for a lifetime. These were believed to be friendships that were formed on the basis of similarities. Now a new study now says that teenagers with similar levels of mental health issues such as anxiety and depression are more likely to remain friends but dissimilarities can create incidence instability. According to a study published in the Journal of Research on Adolescence behavioural similarity is tremendously important to a friendship. “An important takeaway from our study is that children’s personal struggles need not adversely impact their social relationships” said Brett Laursen Professor at the Florida Atlantic University (FAU). “Behavioural similarity