Most people smile when they are frustrated, according to a study.
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There are six times as many people of Irish descent living in America than in Ireland.
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Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
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People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
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On average, men's noses are 10% larger than women's.
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Group "brainstorming" makes each individual in the group less creative and doesn't work as efficiently as the same number of people working alone and then later pooling their ideas.
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There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
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