Why Do Some Drugs Make Your Pupils Wider?
How do your pupils work and why do some substances make them dilate? Hosted by: Hank Green Head to https://scishowfinds.com/ for hand selected artifacts of the universe! ---------- Support...
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[ ♪ Intro ] Whether or not eyes are the windows to the soul... scientifically, pupils are the windows of the eyes. And sometimes, those windows are more open than usual, like when you’ve taken a medication that causes pupil dilation. Or when people use certain recreational drugs. It all comes down to how different chemicals can cause changes throughout your whole body, which can affect little muscles in your eyes. The pupils are openings that let light into the rest of your eye. And the colored part of your eye, the iris, controls how much light makes it in. The balance of two muscle groups in the iris changes how big your pupils are, like a camera aperture. The iris dilator is arranged like bicycle spokes around the center of your eye. And when it co...
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[ ♪ Intro ] Whether or not eyes are the windows to the soul... scientifically, pupils are the windows of the eyes. And sometimes, those windows are more open than usual, like when you’ve taken a medication that causes pupil dilation. Or when people use certain recreational drugs. It all comes down to how different chemicals can cause changes throughout your whole body, which can affect little muscles in your eyes. The pupils are openings that let light into the rest of your eye. And the colored part of your eye, the iris, controls how much light makes it in. The balance of two muscle groups in the iris changes how big your pupils are, like a camera aperture. The iris dilator is arranged like bicycle spokes around the center of your eye. And when it co...
