Why Are So Many People Nearsighted?

Canning foods preserves them, but the texture and nutritive value can suffer -- and what about the potential dangers of BPA and botulism? Learn what's true and what's myth when it comes to canned food in this classic episode of BrainStuff, based on this article: https://recipes.h ...  Show more

These marine invertebrates can solve puzzles, use tools, and camouflage themselves by changing their very skin -- yet they live only three to five years, and die after mating. Learn more about octopuses in today's episode of BrainStuff, based on these articles: https://animals.ho ...  Show more

Something about modern life is leading to higher rates of nearsightedness across the world. What is it? To buy tickets to our upcoming live show in New York, go to http://vox.com/unexplainablelive For more, go to http://vox.com/unexplainable It’s a great place to view show transc ...  Show more

Myopia, or nearsightedness, is on the rise in children as a result of reduced time outside and screen usage. TED Radio Hour host Manoush Zomorodi talks to Maria Liu, an optometrist, about how to slow down this progression and how adults can protect their eyes, too. See pcm.adswiz ...  Show more

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 speaks with Maria Liu, an optometrist with a quest to slow down the pr ...  Show more

As you age, you gradually lose the ability to refocus your eyes -- a phenomenon as old as humanity itself -- leading to a reliance on bifocals, contacts and procedures like LASIK surgery. Electrical engineer Nitish Padmanaban offers a glimpse of cutting-edge tech that's truly a s ...  Show more