Around a quarter of teenagers in the UK say bullying is affecting their studies and causing their GCSE grades to drop.
It comes from a report into bullying which spoke to 3,600 students aged between 13 and 18.
Anti-bullying charity Ditch The Label says 56% of bullied pupils felt it was having an impact on their education.
The research shows they were more likely to achieve a grade D or below at GCSE level.
Almost one in three have gone on to self-harm, with 10% attempting to kill themselves.
Sixteen-year-old Rebecca Parkin says she was bullied from the age of six.
“I got called stupid, fat, ugly and psycho by kids at school, who would also throw water at me in class.
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