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Proprioception illustration: someone demonstrating to a police officer they aren't drunk as they can touch their nose with their eyes closed while standing on one leg

Proprioception

Our ability to sense position and movement of joints and limbs. It’s how you can tell where your right foot is now even without looking. Alcohol screws with it and touching your nose with your eyes closed if often used as part of sobriety tests. Maybe try it yourself next time you’re drunk?

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