No one has ever gone into the Amazon jungle and found an isolated person
By Michelle Roberts
Having a good network of friends and neighbours boosts survival chances by 50%, US researchers believe.
The Brigham Young University team came to this figure by number-crunching data from nearly 150 studies looking at survival odds and social networks.
And they calculate that having few friends is as damaging to survival as smoking 15 cigarettes a day or being alcoholic, PLoS Medicine reports.
They believe caring about others makes us take better care of ourselves.
Social Ties Boost Survival by 50 Percent
A meta-study covering more than 300,000 participants across all ages reveals that adults get a 50 percent boost in longevity if they have a solid social network
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