Human Anatomy and Physiology
Science Experiments

Why is pain an important sensation?



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It is important to feel pain in order to protect the body from harm. The main pain receptors in the body are the free nerve endings, also called nociceptors. There is a rare condition where people are born without pain receptors, and they can break bones and not even know it. They could seriously injure themselves and even die because they cannot feel any pain whatsoever.