When the go-to theories this guy mentions are are cyberbulling, drugs and alcohol, I've got a problem. Either he's not being honest about the current theories, or shows there exists zero insight to today's teenagers' experience of the world.
>We should have universal screening of teenagers at school, with parental consent, to identify those who are suffering from depression and who are at risk of suicide.
Perhaps we should add "living in a world structured by boomers who think mandatory psychiatric intervention of all teenagers for the purpose of identifying a disorder characterized by bad mood and lack of self-esteem is a good idea" to the list of reasons teens might experience depression.