麻豆社

There's a common belief that to avoid being obese you just have to take more exercise and eat less. Well, Cambridge geneticist Dr Giles Yeo says that obesity is a much more complex condition, which is mostly related to the way some people just feel hungrier than others. He spoke to 麻豆社 Newsday.

(Picture: A man with a large belly eats junk food in Leipzig, Germany. Credit: Sean Gallup/Getty Images)