In part three: host Manoush Zomorodi explores how our tech habits are causing our eyes to change shape—to elongate—which causes nearsightedness. She investigates why rates of myopia among kids are soaring. She also speaks with Maria Liu, an optometrist with a quest to slow down the progression of myopia in children by opening the first ever myopia control clinic in the United States.Later in the episode, we hear from a team of employees who tried incorporating "movement snacks" into their days for one week.Click here to find out more about the project: npr.org/bodyelectricWe'd love to hear from you. Send us a voice memo at bodyelectric@npr.org. Talk to us on Instagram @ManoushZ.