A woman who cannot feel afraid because of a missing structure in her brain may help scientists discover treatments for post-traumatic stress disorder according to research published in Current Biology.
Known as SM to protect her privacy, she has damage to a key emotion centre in her brain called the amygdala, which means that nothing makes her afraid. The woman is reportedly to be the first of the case.
The woman experienced fear as a child and knows that some situations should be frightening but as an adult she been sky diving, threatened with a knife and held at gunpoint and felt no fear
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