More than a million people have downloaded a mobile phone game which is helping researcher's studying dementia.
The project saw Cambridge-based Alzheimer's Research UK team up with scientists from the University of East Anglia, UCL and a telecoms company to develop the game.
Playing the game will help our scientists understand in detail how our brains navigate space. It's reckoned that by playing the game for just 2 minutes generates the same amount of data it would take researchers 5 hours to obtain.
Find out more about the game below.