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Physiological markers for cutting, other self-harming behaviors by teenage girls found – Life as an Extreme Sport
Life as an Extreme Sport

Physiological markers for cutting, other self-harming behaviors by teenage girls found


on-fatal, self-inflicted injuries by adolescent and young adult females are major public health problems and researchers have found physiological evidence that this behavior may lead to a more serious psychological condition called borderline personality disorder.

University of Washington psychologists have discovered that adolescent girls who engage in behaviors such as cutting themselves have lower levels of serotonin, a hormone and brain chemical, in their blood. They also have reduced levels in the parasympathetic nervous system of what is called respiratory sinus arrhythmia, a measure of the ebb and flow of heart rate along with breathing.