Outgoing Gorillas Live Longer Than Shy Ones
"These findings highlight how understanding the natural history of personality is vital to ensuring the continued health and well-being of humans, gorillas and other great apes," Weiss said.
Studies of centenarians — people who live to be 100 or more — have found that positive, outgoing people seem more likely to hit the century mark. A study published in May 2012 surveyed 243 centenarians and found most to be outgoing, optimistic and easygoing. These personality traits may arise from underlying genetics, which also influence health, the researchers told LiveScience when the study came out.
The new gorilla study, published today (Dec. 5) in the journal Proceedings of the Royal Society B, asked humans who knew the gorillas well to rate the animals' dominance, extroversion, neuroticism (a measure of anxiety that has been linked to shorter lives in humans) and agreeableness. They found that only extroversion was linked to life span.
This extroversion-longer life link wasn't affected by the gorilla's gender, age at assessment or how many times the gorilla had been moved from facility to facility.
Sourced from Live Science