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Never before have we experienced social isolation on a massive scale as we have during the evolving COVID-19 pandemic.

Lonely old man staring out of a window

A new paper published in the journal Trends in Cognitive Sciences explores the wide-ranging, negative consequences that social isolation has on our psychological well-being and physical health, including decreased life span. The paper was co-authored by Associate Professor Danilo Bzdok (McGill University and Mila Quebec Artificial Intelligence Institute) and Emeritus Professor Robin Dunbar (Department of Experimental Psychology, University of Oxford).

Through examining a broad range of studies, a full picture emerged of the severe impact that loneliness can have, namely that:

  • having strong interpersonal relationships is critical for survival across the entire lifespan;
  • social isolation is a significant predictor of the risk of death;
  • insufficient social stimulation affects reasoning and memory performances, hormone homeostasis, brain grey/white-matter, connectivity and function, as well as resilience to physical and mental disease;
  • feelings of loneliness can spread through a social network, causing negatively skewed social perception, escalating morbidity and mortality, and, in older people, precipitating the onset of dementia, such as Alzheimer’s disease.

Read more on the University of Oxford website

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