Even traits that we associate with our core personality and values are affected by too little sleep. According to a study from the Walter Reed Army Institute of Research, sleep deprivation reduces our emotional intelligence, self-regard, assertiveness, sense of independence, empathy toward others, the quality of our interpersonal relationships, positive thinking, and impulse control. In fact, the only thing the study found that gets better with sleep deprivation is “magical thinking” and reliance on superstition. So if you’re interested in fortune-telling, go ahead and burn the midnight oil.
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