The Great Recession, so I’m told, has been great for one segment of the economy - the makers of pills and potions that offer the promise of keeping people healthy. A middle-aged woman remarked as she perused the supplement shelves in my local health food store (I was buying bulgur): ‘I can’t afford to get sick. I lost my job and I have no health insurance. Each year millions of people fall prey to false promises that this, that or the other formula or fortified food can protect their hearts, prevent cancer, improve memory, strengthen their bones, uncreak their joints, build their muscles, even enable them to burn extra calories without moving. The desire to achieve a healthy old age is laudable indeed, and will be even more so in the future. According to a projection of the century-long rise in life expectancy published in The Lancet in October, more than half the children born since 2000 in wealthy countries can expect to celebrate their 100th birthday. If so many of us are destined to become centenarians, it is all the more important to be able to enjoy those years unencumbered by chronic disease and disability. There […]