The lonelier you are, the harder you are willing to work—physically—just to help a stranger.
April 16, 2026
Original Paper
White-Knuckled Prosociality: Loneliness increases willingness to exert effort to benefit others
PsyArXiv · u2erk_v2
AI-generated illustration
The Takeaway
You’d think that feeling isolated would make someone bitter or less likely to care about others. But this study found the exact opposite: lonely people are actually willing to exert significantly more physical effort to benefit others than people with thriving social lives. It’s called 'white-knuckled prosociality.' It seems that when we are starved for connection, our brains go into overdrive to prove our value to the 'tribe' through hard work. For regular people, this means that the guy working the hardest for the group might actually be the one who feels the most disconnected from it.
From the abstract
Loneliness, or perceived social isolation, motivates individuals to foster their relationships while remaining vigilant to potential social threats. Lonely individuals must interpret the social cues they receive from others and respond accordingly by engaging in affiliative behaviors while also identifying and managing threats. Prosocial acts – or voluntary actions meant to benefit others – are one type of behavior that can help lonely individuals reaffiliate. Loneliness has been linked to diffe