Rodney Brownell

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9 Subtle Ways Psychopaths Communicate Differently, According to Science

A single conversation could be all you need to spot a psychopath.<p>For years, scientists have known that psychopaths' brains are different from normal ones. Brain scans show reduced activity in areas that regulate impulses, emotions, aggression, and morality.<p>But since you probably don't have brain …

How smartphone light affects your brain and body

There's something incredibly powerful about the blue lights that the designers of our smartphone, tablet, and laptop screens have been able to create. The lights in these screens glow so bright that we can see them even during a sunny day. At night, they're bright enough that they've been compared …