In France, a country famous for its cheese, a team of neuroscientists went looking for people who cannot stand the stuff. Then they slid 15 of them into an MRI scanner, piped cheese odors toward their noses, and showed them pictures of Parmesan and blue cheese.
The scans turned up a counterintuitive result. In people who dislike cheese, parts of the brain's reward system became more active, not less, while a small region tied to the desire to eat appeared to switch off.
