Brain Rules for Aging Well
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John Medina. Brain Rules for Aging Well
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about the author
JOHN MEDINA is a developmental molecular biologist and research consultant. He is an affiliate professor of bioengineering at the University of Washington School of Medicine. He was the founding director of two brain research institutes: the Brain Center for Applied Learning Research, at Seattle Pacific University, and the Talaris Research Institute, a nonprofit organization originally focused on how infants encode and process information. Medina lives in Seattle, Washington, with his wife and two boys.
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We start feeling lonely in late adolescence, and the feeling decreases as we move through early-to-middle adulthood. That’s natural: we go through school, jobs, kids—experiences chock-full of other people. Our number of friends rises sharply to peak at age twenty-five, then slowly drifts down to age forty-five, levels a bit, and continues its decline after fifty-five, completing the U shape of loneliness.
There are many caveats and nuances to these data, so the U curve’s a bit wobbly. Seventy-five-year-olds experience some of the least feelings of loneliness in life, followed by the most a month or two after their eightieth birthday. Seniors who don’t make much money experience severe loneliness more sharply than seniors who do: a monstrous threefold increase. Married people experience less loneliness than those living alone. This is true for all age groups, but the quality of intimacy plays a larger role for the marital well-being of seniors than of younger people. Physical health plays a powerful role in how much isolation the elderly suffer, too.
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