By HOLLY ST. LIFER My mother died fast of pancreatic cancer when I was 17, and I’ve lived most of my life since waiting for the worst. But when I entered my 50s, for no reason I could conjure, I stopped seeing the world through that dark lens. I wondered if this was wisdom. Is this a perk of getting old? Did I grow out of worrying? Then a few months ago, I read about the U-curve. In the 1990’s labor economists David Blanchflower of Dartmouth and Andrew Oswald of the University of Warwick began studying the relationship between work and happiness by looking at international surveys of life satisfaction.
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