Researchers from the University of Exeter have come up with a 'stop-go' game which trains players to associate things like biscuits with the act of 'stopping'.
Volunteers who played it just four times for 10 minutes - while keeping food diaries - lost almost 1-and-a-half pounds in a week.
It's thought it could eventually be available on smartphones.
Alison Hernandez secures third term as police and crime commissioner
She'll continue tackling major issues on her to-do list
How Exeter's traffic troubles influenced council vote
LTN campaigner ousts Labour candidate
Labour tightens grip on Plymouth City Council power
They've gained nine extra seats
Radio Exe newsreader to abseil down Exeter Cathedral
Josh Tate will descend over 100 feet on Saturday
Labour retains control of Exeter City Council
Despite losing a seat to the Greens and an independent
