BBC: Social media and teenage health-2

And so, I think the challenge here, as a parent, listening to this is what do you do about it. And I think the onus has really been put on parents and concerned adults to find solutions on thier own. And that means debates with your child over what are you on, are you using this, but it's a losing battle because it's their entire social network. 

Professor Sridhar says that, when it comes to helping teenagers navigate social media, the onus has been put on parents to find solutions. The onus means the responsibility or duty. Parents need to be able to challenge their children when they need to, even if this is a losing battle, a fight they cannot win, as teenagers have their 'entire life' on social networks. 

OK, Beth. I think it's time I revealed the answer to my question. I asked you what percentage of 13 to 24-year-olds use Snapchat?

And I said it was 80%.

And that was... I'm sorry to say, the wrong answer! Actually 90% of people aged between 13 and 24 use Snapchat- quite a lot. Ok, let's recap the vocabulary we've learned from this programme, starting with adolescent, a person aged 10 to 19: between childhood and adulthood. 

If you are fed content, you are given content. This is what the social media platform offers you automatically, rather than what you search for yourself. 

Algorithms are a complex set of rules and calculations that priorities and personalize the content a user sees. 

Revenue is the money  a company earns, which could come from slaes or advertizing. 

If the onus is on someone, it's their responsibility or duty. 

And finally, a losing battle is a fight you cannot win.