Curb the festive feast and live longer?

The ‘bah humbug’ warning comes from a statistician at the University of Cambridge who calculated that, averaged over a lifetime, a ‘microlife’ (defined as 30 minutes of life expectancy) can be lost if you are five kilos overweight, drink more than one alcoholic drink a day, eat a burger, watch two or more hours of television or smoke more than two cigarettes.