Prince William showed up to a London school yesterday to discuss cyber bullying, and got a bit emotional in the process. “I worry for you girls,” he told students at Burlington Danes Academy during a midday assembly.

“The touched-up pictures are not real. Don’t try to recreate them or think that’s what you’ve got to aim for. There’s a lot of fakeness online so don’t worry about that.”

Asked for his advice to aid mental health, he told the assembly of 250 students: “Don’t spend all day online. Seriously, don’t. For your mental health, get outside, come away from the screen. By all means, be on a screen but don’t be on it all day because it will only bring you into another world. It’s important that you balance the time.”

H/T: People

“Your speaker for this morning’s assembly is … err Prince William”. Duke of Cambridge & @professorgreen surprise pupils at @ArkBDA who are talking about cyber-bullying #StopSpeakSupport pic.twitter.com/NITrRpCGCE

— Chris Ship (@chrisshipitv) February 8, 2018