I've heard people say some illnesses are much more painful than others. For example, gallbladder attacks and kidney stones are much worse than even cancer sometimes. Is it really true or just in the mind of the pain sufferer?

There is some definite truth to this observation. Some of the organs are made from the same tissue as the brain during embryologic development. The brain may perceive the pain signals from these organs more intensely than signals from other organs.

Scientists have also shown the importance of how each person perceives pain. That's why pain from fibromyalgia, cancer, and headaches may be rated equally disabling by different people. Mood, beliefs, and other psychologic factors may be the real key to how pain is perceived.

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