The aroma of delicious food is one of life’s great pleasures — especially when we’re hungry. But should the very smell of food come with its own health warning?
A growing body of evidence suggests it should, and could explain weight gain. And it’s not simply because when we smell delicious food our willpower wilts; smell seems to cause physiological changes that make some people gain weight.
In one of the most recent studies, at the University of California, Berkeley, researchers put three groups of obese mice on the same high-calorie diets and measured their weight and the speed of their metabolisms.