I’ve always struggled to understand economics, which means I have a bit of cheek embarking on a view of the economics of the western world. Still, in my possibly naive view there are simple rules. Take Alzheimers for instance. By taking daily exercise, eating healthy food and maintaining mental and social stimulation, there is a good chance of avoiding Alzheimers. Similar rules apply for avoiding type 2 diabetes and heart disease, and probably many other diseases that swoop in when the rules are ignored.