A study by the Medical School of Harvard shows that repeated dieting makes weight loss more difficult. In this experiment, 80 obese patients were put on a diet. Each of them lost an average of 24 pounds during a period of 231 days, which means little more than 1 / 8 of a kilogram daily. Having regained all the lost weight, they were put back on exactly the same diet. But this time, they lost less than 1 / 12 of a kilogram per day or 12 pounds in 184 days on average. At this rate, it would take them 368 days to lose the same 24 pounds (137 days longer than the first time).
But, why does this happen?
