The Psychology Of Loneliness

The Psychology Of Loneliness: Loneliness is the painful gap between the social connection we want and what we have; researchers now treat it as a biological warning signal like hunger, one that affects sleep, immunity, heart health and how people read the world around them.

John Cacioppo: The neuroscientist who pioneered loneliness research found it puts the brain on alert for social threats, making lonely people quicker to notice rejection and slower to trust.

Julianne Holt-Lunstad: Her 2010 analysis of 148 studies covering more than 300,000 people found strong social ties raised survival odds by about 50 percent, an effect often compared to quitting smoking.

Vivek Murthy: In 2023 the US Surgeon General issued an official advisory declaring an epidemic of loneliness and isolation.

Tracey Crouch: In 2018 she became the United Kingdom's first Minister for Loneliness, after a report found millions of Britons often or always felt lonely.

Tetsushi Sakamoto: In 2021 Japan appointed him Minister of Loneliness, following the UK's lead as isolation rose during the pandemic.

Harvard Study of Adult Development: Running since 1938, it found that satisfaction with relationships at age 50 predicted health at 80 better than cholesterol levels did.

Cyberball: In this simple online ball tossing game, researcher Naomi Eisenberger showed that being left out by strangers activates the same brain regions as physical pain.

C. Nathan DeWall: His 2010 study found that daily doses of acetaminophen reduced people's reported hurt feelings, suggesting social pain and physical pain share wiring.

Steve Cole: The UCLA genomics researcher found chronic loneliness shifts immune gene activity toward inflammation and away from fighting viruses.

Framingham Heart Study: Analysis of this long running study found loneliness spreads through social networks, moving from person to person like a contagion.

Nicholas Epley: His 2008 research found lonely people are more likely to see human minds in pets, gadgets and even gods, the same instinct behind Tom Hanks talking to a volleyball in Cast Away.

BBC Loneliness Experiment: The 2018 survey of about 55,000 people found 16 to 24 year olds reported feeling lonely more often than any other age group, overturning the idea it is mainly an elderly problem.

Robin Dunbar: The anthropologist proposed humans can maintain about 150 meaningful relationships, but only around five truly close ones.

Robert Putnam: His 2000 book Bowling Alone showed Americans were joining leagues, clubs and civic groups far less, even as more people bowled.

Harry Harlow: His 1950s experiments showed baby monkeys chose a soft cloth mother over a wire one that gave milk, proving comfort and contact matter as much as food.

Christopher Knight: Known as the North Pond Hermit, he lived alone in the Maine woods for 27 years and said he spoke only one word to another person in all that time.

Michel Siffre: In 1962 the French scientist lived alone in an underground glacier for two months and emerged convinced far less time had passed than actually had.

Richard E. Byrd: In 1934 the explorer spent months alone at an Antarctic weather station, and his book Alone describes the mental strain as well as slow carbon monoxide poisoning from his stove.

Eastern State Penitentiary: This Philadelphia prison pioneered total solitary confinement in 1829, and Charles Dickens, after visiting, called the slow tampering with the mind worse than any torture of the body.

Hikikomori: The Japanese term for people who withdraw from society for months or years was popularized by psychiatrist Tamaki Saitō in 1998, and a 2023 government survey estimated about 1.46 million people in Japan live this way.

Moai: On Okinawa, one of the world's longevity hotspots, people join lifelong small groups of friends who support each other socially and financially for decades.

Men's Sheds: This movement began in Australia in the 1990s, giving older men community workshops where connection happens side by side over tools rather than face to face over feelings.

Nighthawks: Edward Hopper's 1942 painting of isolated figures in a late night diner became the internet's go to image of lockdown loneliness in 2020.

Mother Teresa: After decades working among the poorest people in Calcutta, she said loneliness and the feeling of being unwanted was the most terrible poverty.