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  2. Posts tagged "sleep"

sleep

  • How personality traits shape sleep quality

    Zlatan Krizan (Hannah Olson-Wright) According to research by an Iowa State University psychologist, how well you sleep may depend as much on your personality as… Read More

    June 9, 2025

  • Man in dark looking at computer laying down.
    The struggle is real

    New research from psychology professor Zlatan Krizan finds more Americans have trouble falling asleep and staying asleep. Read More

    November 18, 2019

  • Woman sleeping with white blankets and pillows
    Lack of sleep intensifies anger, impairs adaptation to frustrating circumstances

    New Iowa State University research shows that losing just a couple hours of sleep at night makes you angrier, especially in frustrating situations. Read More

    November 27, 2018

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