Social media: Why do we like getting likes?

What do apps like Instagram, TikTok and YouTube have in common?

Yes, they're among some of the most downloaded social media apps but there is something else that links them together, a like button.

If you're 13 and over you'll probably click the like button a couple of times across social media apps today but how do we really feel about likes online?

De-Graft has been doing some digging.