Seniors today are happier than previous generations, according to new findings from the University of Pittsburgh.

Researchers surveyed more than 3,000 residents of the Monongahela Valley, from 1987 to present day. Study volunteers were all older than 65.

The more recently born cohorts were less likely to report symptoms of depression. 

"Particularly when it comes to their mood, their energy, and their feelings of hopelessness," said Pitt epidemiologist Kevin Sullivan, the study's lead author.

Specifically, when compared to people born between 1902-1911, those born between 1912-1921 were 43 percent less likely to feel depressed in their senior years. Those born between 1922 and 1931 were 63 percent less likely to been depressed, than the first group. And people born between 1932-1941 were 79 percent less likely to be depressed, when compared to those born three decades earlier. 

This progressively rosier outlook could not be explained by increases in education or the use of anti-depressant medications. Sullivan theorized the findings have to do with quality of life.

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