Aging and social networks – The daily blog of behavioral and cognitive economics

Humans aren’t the only ones whose social circles shrink in old age

Previous research has shown that some other species — not just people — see their social networks shrink as they move into old age. Exactly why this should be has not been clear; we have some understanding of why it happens in humans, and what can be done to mitigate any negative effects, but why exactly it happens beyond our species has so far been a mystery. New research, however, poses a novel suggestion. As Erin R Siracusa at the University of Exeter’s School of Psychology and colleagues write in their recent paper in Philosophical Transactions B, though the benefits of social living are well established, “sociality also comes with costs, including infectious disease risks.” ….[READ]