Do you have an annual health check? Plenty of people do. Health screening – general checks on people who don’t have any symptoms – is widely promoted by private doctors and health insurance companies – and popular. Successful executives, who are used to being in control, understandably think of their health as another area where, if they take prudent precautions, they can minimise risks. --snip-- And they are not suggesting that doctors shouldn’t screen or test patients when they suspect something is going on. They approve of targeted interventions for specific conditions. More worrying, though, is the fact that there...