In China's cities, despite the huge crowds, or maybe because of them, residents can feel very isolated. This was reported by Qazaqyia.kz citing BBC News.

Now, a new industry being dubbed the "loneliness economy" has emerged, with people hiring themselves out as companions to help the elderly.

The BBC's China correspondent Stephen McDonell visits a company that does just that, to see how their business works.

Read more about the paid companions bringing warmth to China's lonely.