Scientists can’t get enough of ‘moreish’ mystery

Scientists are starting to unravel the mystery of moreishness — why some snacks seem impossible to eat in small amounts.

It is the phenomenon that explains why it can be so difficult to dip into a crisp packet without polishing off all the contents. Likewise, a single bite of chocolate may prove waist-expandingly fatal.

Some might call it greed, but another name for such behaviour is “hedonic hyperphagia”.