Study reveals why we trust some strangers and not others: Strangers are more likely to be trusted if they look like someone who has earned your trust before – and more likely to be distrusted if they resemble someone who has betrayed your faith in them, finds new research in the journal PNAS.

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Study reveals why we trust some strangers and not others: Strangers are more likely to be trusted if they look like someone who has earned your trust before – and more likely to be distrusted if they resemble someone who has betrayed your faith in them, finds new research in the journal PNAS.