Comment by HighGoldstein

>Her parents also believe that watch circles contributed to Liu’s increasingly unstable emotional state in the run-up to China’s high school entrance exams. With just three months to go, teachers advised that she take a leave of absence after a video emerged of Liu rolling on the floor of a classroom before rushing out. Shortly after, she was placed on medication for severe depression.

>While the Asperger’s syndrome and academic pressure no doubt played a part in the breakdown, Wang and Liu’s therapist also felt that she had become overstimulated by her online socializing.

Naturally, it wasn't the Zhongkao, but basic social media.