Do you know what happiness is, my friend? And how happiness correlates with age? How the research shows, people usually reach… It was all about theory and researches. When mother comes home and small children is very happy They are not bored of staff like taxes, fee or insurance. Due to adolescence is their mood truly unstable. However, the open choice can also be frustrated… Therefore is important to enjoy the small things. It is factory for happiness. I think that happiness is very irrelevant thing.