New research indicates that Post Traumatic Stress Disorder may be linked to a physical swelling in the brain. This leads scientists to believe that by preventing this swelling, they may be able to not only treat PTSD, but actually immunize against fear itself. Jeff and Anthony imagine a world without fear, and wonder what they'd do if they could prevent their own anxieties.

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Today’s story submitted by Christine Reynolds: https://www.scientificamerican.com/article/immunization-could-halt-post-traumatic-stress/

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