Some People believe that the teenage is the happiest period of the lives of them, mostly. First of all, in these years they are at the best physical health situation, generally. Since they are more active than the other ages, they can do vigorous exercises at the gym. In addition to keeping fitness, they can make a lot friends there and both of them make a great happiness for them. Secondly, because of few responsibilities in the society, the teenagers are less stressful. As they do not work their duties are restricted, so they do not have to think about them all along the day and this causes they seen remarkably calm and happy. (114 words)
On the other hand, the other group think that the adulthood is happier age than the other years. Firstly, at this age people have the job and because of working feel they are beneficially important for the society. Moreover, as the adults have to work routinely, their lifestyle is scheduled and this consistency makes a great pleasure to them. For example employees have to be early bird and this makes them to seem more cheerful, usually. Secondly, the adult have more independent than teenagers specially in decision aspect. Since the human brain fully matures at the age of 25, adult can make their own decisions self-confidently without any restrictions by their parents. (112 words)