15 mayo 2015
If you have a spring in your step and a smile on your face, you’re in good company. Americans are generally a pretty happy bunch, according to a new study that aims to further our collective understanding of happiness and its root causes. With age comes happiness. Beginning with 30- to 34-year-olds, every age group gets progressively happier than the general population, peaking among those aged 65 and older.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jp6ajj01ZJQ/150515000709.htm
