Philip Morris International (PM.N), the world's largest international tobacco company, could eventually stop selling cigarettes, its chief executive told the BBC on Wednesday, as it launched its alternative product IQOS in Britain.
People who regularly go on diets tend to lose weight initially but bounce back and even gain weight after stopping the regime. This phenomenon – dubbed yo-yo dieting – is associated with changes in metabolism and is one reason why the vast majority of calorie-based diets fail. But exactly what causes these metabolic changes has remained a mystery – until now.
What is the most important source of news and therefore the most powerful media organisation in the world today? Well, there is a good argument that the answer is not a newspaper or broadcasting organisation but a social network, Facebook.