Do you recall secondary school and high-school times, when you ate everything  you wanted and still weighted few kilograms less than you do now? Unfortunately the years of carelessly stuffing yourself with fast foods are gone. Now eating ice-cream, cookies, bars of chocolate or chips is a rare occasion. Why is it? What has changed? Why I can’t fit into the dress from my prom? And most important: is it possible to change this situation?! With a bit…