Think of the last time you hurt yourself: maybe you fell off your bike, got a papercut, or drank tea that was too hot. All of these experiences are very unpleasant because of nociceptors: special cells in your skin that detect pain. When something harmful touches your body, like a sharp or hot object, nociceptors quickly alert your brain that something’s wrong. This signal causes us to feel pain, and even though it can be uncomfortable, it’s an important warning that helps us avoid further injuries.
Our brain processes pain signals from every part of our body— but interestingly, the brain doesn’t have any pain receptors of its own. So, no: the brain can’t feel pain! In fact some brain surgeries are actually done while the patient is awake, and they don’t feel a thing!
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April 2025
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