There are others factors... obesity has been mentioned many times and might be part of the answer to your question, so I looked at the Wikipedia link posted and

There are others factors... obesity has been mentioned many times and might be part of the answer to your question, so I looked at the Wikipedia link posted and see that Switzerland has Europe's lowest obesity rate. The UK, OTOH: "Obesity in the United Kingdom is a significant contemporary health concern, with authorities stating that it is one of the leading preventable causes of death."