This is how fast food ads control your brain

Many of us probably think we're immune to ads featuring burgers, chips, fried chicken and pizza.

Time to think again.

A new study from the University of Michigan reveals that not only does fast food marketing affect our brains on a biological level, the ads may also cause us to indiscriminately seek out unhealthy foods.

So what is it about the adverts that make us crave junk, and is there anything we can do to counter them?

Watch the video above to find out more.