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  • Video 
    What causes insomnia? - Dan Kwartler

    What causes insomnia? - Dan Kwartler

    What keeps you up at night? Pondering deep questions? Excitement about a big trip? Stress about unfinished work? What if the very thing keeping you awake was stress about losing sleep? This seemingly unsolvable loop is at the heart of insomnia, the world’s most common sleep disorder. So what is insomnia? And is there any way to break the cycle? Dan Kwartler details the science of insomnia.

    Course related:
    APSS1L01 Tomorrow's Leader
    Subjects:
    Health Sciences
    Keywords:
    Insomnia
    Resource Type:
    Video
     
  • Video 
    The Wildly Complex Anatomy of a Sneaker

    The Wildly Complex Anatomy of a Sneaker

    Australians call them "runners." The British know them as "trainers." Americans refer to them as "sneakers." Whatever you call them, these casual shoes are worn by billions of people around the world. Today, roughly 23 billion shoes are produced each year. So, how can we balance our love of sneakers with the need for sustainability? Angel Chang explores how shoe manufacturing impacts our planet.

    Subjects:
    Fashion and textiles
    Keywords:
    Footwear industry Footwear Sustainability
    Resource Type:
    Video
     
  • Video 
    A Day in the Life of an Ancient Babylonian Business Mogul

    A Day in the Life of an Ancient Babylonian Business Mogul

    It's 1762 BCE. As dawn breaks in the Babylonian city of Sippar, Beltani— a priestess and businesswoman— receives an urgent visit from her brother. He makes a troubling accusation: her tavern keeper has been undermining the business Beltani relies on in her old age. Now she has just a few short hours to find out the truth. Soraya Field Fiorio details a day in the life of a Babylonian naditu.

    Subjects:
    Area Studies
    Keywords:
    Middle East -- Babylonia Social conditions Women
    Resource Type:
    Video
     
  • Video 
    The Psychology of Post-Traumatic Stress Disorder

    The Psychology of Post-Traumatic Stress Disorder

    Many of us will experience some kind of trauma during our lifetime. Sometimes, we escape with no long-term effects. But for millions of people, those experiences linger, causing symptoms like flashbacks, nightmares, and negative thoughts that interfere with everyday life. Joelle Rabow Maletis details the science behind post-traumatic stress disorder, or PTSD.

    Subjects:
    Psychology
    Keywords:
    Post-traumatic stress disorder
    Resource Type:
    Video
     
  • Video 
    The Psychology Behind Irrational Decisions

    The Psychology Behind Irrational Decisions

    Often people make decisions that are not "rational" from a purely economical point of view — meaning that they don't necessarily lead to the best result. Why is that? Are we just bad at dealing with numbers and odds? Or is there a psychological mechanism behind it? Sara Garofalo explains heuristics, problem-solving approaches based on previous experience and intuition rather than analysis.

    Subjects:
    Psychology
    Keywords:
    Decision making
    Resource Type:
    Video
     
  • Video 
    The psychology of narcissism

    The psychology of narcissism

    Narcissism isn't just a personality type that shows up in advice columns; it's actually a set of traits classified and studied by psychologists. But what causes it? And can narcissists improve on their negative traits? W. Keith Campbell describes the psychology behind the elevated and sometimes detrimental self-involvement of narcissists.

    Subjects:
    Psychology
    Keywords:
    Narcissism Egoism
    Resource Type:
    Video
     
  • Video 
    How Do Carbohydrates Impact Your Health?

    How Do Carbohydrates Impact Your Health?

    The things we eat and drink on a daily basis can impact our health in big ways. Too many carbohydrates, for instance, can lead to insulin resistance, which is a major contributor to cardiovascular disease and Type 2 Diabetes. But what are carbs, exactly? And what do they do to our bodies? Richard J. Wood explains.

    Subjects:
    Health Sciences and Food Science
    Keywords:
    Carbohydrates Nutrition
    Resource Type:
    Video
     
  • Video 
    How Do Cancer Cells Behave Differently from Healthy Ones?

    How Do Cancer Cells Behave Differently from Healthy Ones?

    How do cancer cells grow? How does chemotherapy fight cancer (and cause negative side effects)? The answers lie in cell division. George Zaidan explains how rapid cell division is cancer's "strength" -- and also its weakness.

    Subjects:
    Health Sciences and Biology
    Keywords:
    Cancer cells
    Resource Type:
    Video
     
  • Video 
    The Physics of Surfing

    The Physics of Surfing

    Whether or not you realize it, surfers are masters of complicated physics. The science of surfing begins as soon as a board first hits the water. Surfers may not be thinking about weather patterns in the Pacific, tectonic geology or fluid mechanics, but the art of catching the perfect wave relies on all these things and more. Nick Pizzo dives into the gnarly physics that make surfing possible.

    Subjects:
    Physics
    Keywords:
    Surfing
    Resource Type:
    Video
     
  • Video 
    The Physics of The "Hardest Move" in Ballet

    The Physics of The "Hardest Move" in Ballet

    In the third act of "Swan Lake", the Black Swan pulls off a seemingly endless series of turns, bobbing up and down on one pointed foot and spinning around and around and around ... thirty-two times. How is this move — which is called a fouetté — even possible? Arleen Sugano unravels the physics of this famous ballet move.

    Subjects:
    Physics
    Keywords:
    Ballet dancing Physics
    Resource Type:
    Video