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Why is pain so painful? After all, it is only nerve impulses sent to our brains like many others.
Jeremy Greenwood
Bacup, Lancashire, UK
Pain may be considered as both a sensation and an emotion, which is to say that the painful stimulus is directed to more than one part of the brain.
It needs to be unpleasant. A person who can’t feel pain may not notice that they are leaning on a hotplate until they become aware of a smell of burning.
But pain isn’t just a question of avoiding such obvious trauma. Normal daily activities can be damaging. The forces on the knees while…
