According to Ignace Janssen, medical director of the Dutch Obesity Clinic in Nieuwegein, this is important because overweight is greatly underestimated. “It’s a chronic disease, but many think it only occurs in people who don’t have control over their food.” However, according to the medical director, that is not quite the right picture. “Your brain determines where the balance of your weight is. If that is disturbed, that is a disease that you have to treat with medication.”