Scientists from the University of San Diego conducted an analysis of information of about 1.3 million people. The age of the subjects ranged from 13 to 96 years, and the study lasted from 1972 to 2014. It turned out that the number of happy people for the last 40 years has reduced by a third. This writes the Psych Central, referring to the results of the study.
In the 1970s, 38% of people considered themselves to be happy. By 2010, the level of happiness among the adult population decreased significantly for both men and women. We will note, today's teenagers, by contrast, feel much happier than their peers from the 1970-ies.
Scientists suggest that it may be in the inflated expectations of the modern man. To the middle when he realizes that he will not be able to achieve everything planned, breakdown occurs, decreases the motivation to further activity. In the middle of the last century, it is easier for people to be content with little, so with age, the level of happiness they did not fall.