Faces: Not always an open book
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Science News
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Body language affects how others see us, but it may also change how we see ourselves. Social psychologist Amy Cuddy shows how "power posing" -- standing in a posture of confidence, even when we don't feel confident -- can affect testosterone and cortisol levels in the brain, and might even have an impact on our chances for success. 
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Today's security cameras and drones can help humans match faces against most-wanted lists and spot suspected enemies on the battlefield.
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Psychologists claim that your sleeping habits may reveal the truth about your love life.
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Ask any person, from any country‚ to make a fearful face and you'll get the same response-eyebrows raised, eyes wide open, flared nostrils. A disgusted face, on the other hand, shows brows furrowed, eyes narrowed, and a tight mouth. The universal nature of certain facial expressions like fear, disgust, and sadness has led evolutionary scientists to wonder if facial expressions play a more fundamental biological role than just conveying emotion.
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Deaf people who use sign language are quicker at recognizing and interpreting body language than hearing non-signers, according to new research from investigators at UC Davis and UC Irvine.
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