Comfort food isn't just a marketing ploy thought up by pedlars of mac 'n' cheese. It's science. And now scientist Karina Martinez-Mayorga has proven what many of us already knew: comfort food makes you feel great.

Check out the top five comfort foods in the slideshow (some might surprise you!) and then add your favourite foods, and recipes on how to improve some of the less appealing "comforters", in the comments below: