Counting calories of every slice you eat, carefully reading labels to see what a yoghurt contains, feeling fooled when there is no zero-fat kefir in a supermarket? And once you have managed to lose some weight, the body for some strange reason persists in coming back to its previous shape?
“What a metabolism,” you sigh. “Lucky are those who can eat anything they like and stay trim!”
Actually, it is the regular weight-reducing programmes that disturb our metabolism. This is the way our bodies are designed: when the times go hard, not a calorie to waste, when everything is all right, let's save something just in case. As soon as you start pulling yourself down, your metabolism slows down too, in order to keep the energy balance, because, in terms of energy, the times are obviously hard.