In a new study, researchers have explored how modern adults perceive the onset of old age compared to previous generations. The experts found that, as life expectancy increases and retirement ages are pushed back, the public perception of when old age begins is shifting to later in life.  The study was led by an international team of researchers including psychologist Markus Wettstein from Humboldt University in Berlin, and his colleagues from Stanford University, the University of Luxembourg, and the University of Greifswald. Notable shift in the perceived...