Are Humans Slowly Losing Their Eyesight? | The Nearsightedness Epidemic

Is it true that humans are slowly losing our eyesight? Is your vision blurry? While it's not the kind of epidemic you're used to hearing about, nearsightedness is becoming a major health issue in many places. Join Michael Aranda for a new episode of SciShow and learn about how scientists are finding out the reasons behind the increase in myopia, and how sunlight might be a key factor!
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