Call for tighter rules on 'advergames'

The games are played on mobile devices Credit: Jan Haas/DPA/Press Association Images

A study by the University of Bath found many children are playing games without realising they're adverts for junk food.

They're known as 'advergames' and researchers at the university are calling for stricter rules to control them. They say the games can affect what children choose to eat and drink.