According to the Daily Mail, scientists from the National Health and Development Survey of the British Medical Research Council recently confirmed that most obese people who try to lose weight by reducing calories or exercising will eventually regain their original weight. The best way to lose weight is to avoid getting fat from the beginning, but this is only the best preventive measure.

Some experts say that it is the evolutionary mechanism that makes it easier for human beings to gain weight than to lose weight. Dieting will make this inherent imbalance more extreme, because the reduction of calorie intake will lead to starvation and reduce energy consumption, thus making it more difficult to lose weight.

Commenting on the study, Professor Nick Faye of University College Hospital London said: "When the weight problem becomes serious in middle age, it is impossible for people to suddenly evolve a mechanism to fight obesity. Looking back at human history, fat storage is a survival advantage most of the time. "