Complete loss or absence of tactile sensation or the sense of touch, a neurological condition.
From Greek 'aphanes' (not appearing) combined with the suffix '-sia' indicating a medical condition. The term suggests the disappearance of sensation or perception, particularly regarding touch and proprioception.
People with aphanisia can't feel pain, temperature, or pressure on their skin—which sounds like a superpower but is actually dangerous because they don't know when they're injured! Their brains literally aren't receiving the signals that normally make sensations 'appear' to our consciousness.
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