Scientists study loneliness

A U.S. scientist studying physiological dynamics of day-to-day experiences say older adults who go to bed lonely have higher cortisol levels the next day.

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<p><a href="http://www.physorg.com/news81534226.html">Scientists study loneliness</a></p> <p>A U.S. scientist studying physiological dynamics of day-to-day experiences say older adults who go to bed lonely have higher cortisol levels the next day.</p>