Soldiers Brains Bear Scars of Emotional Wounds

Eighteen months after they have returned from a war zone, soldiers bear an unmistakable sign of emotional trauma deep inside their brains. But in most, a key node of the brain’s fear circuitry returns to normal, perhaps keeping mental illness such as post-traumatic stress disorder (PTSD) from developing, says a new study published Tuesday in the journal Molecular Psychiatry. Los Angeles Times.