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The discovery in the UK of a 71-year-old woman who does not feel pain can lead to a scientific breakthrough.
According to British Journal of Anesthesia, doctors have identified two genetic mutations in 71-year-old Jo Cameron, which suppress pain and anxiety but stimulate happiness and healing of wounds.
Cameron had limb fractures, surgery and childbirth with little or no need for pain relief.
In extreme cases, mutations can often cause people to feel no pain, says James Cox, a researcher in the study.
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Jo Cameron, 71, often accidentally burns himself on his oven and does not realize it before feeling the "burning flesh".
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"When they are young, they usually bite parts of the tongue and fingers because they did not learn that it was dangerous," he said. The Guardian.
Cameron says that she often burns herself by accident on her oven and does not realize that she feels "burning flesh".
"I'm vegan, so the smell is pretty obvious," she says The Guardian.
In addition to her inability to feel pain, she also never panics and feels no anxiety. In stress and depression tests, she scores zero.
It is believed that Cameron inherited gene mutations from his father, and his son would also have a dull ache.
This discovery could lead to new treatments for people with chronic pain.
"She has a lot to learn from her, and once we understand how the new gene works, we can think of gene therapies that mimic the effects we see in her," said Cox.
"Millions of people are living in pain and we urgently need new painkillers – patients like this can give us real information about the pain system."
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