Scientists have discovered 5 personality traits linked with a long life

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Are you friendly? Open? Emotionally stable?

Dozens of large studies of older people around the world suggest that these personality traits are among a handful of characteristics tied to a longer life.And while one study found that we're not particularly good at identifying these traits in ourselves, it suggested that our close friends are often spot-on.
Read on - preferably with a friend - to find out if you possess any or all of these characteristics: