A recent study published in Comprehensive Psychoneuroendocrinology provides insight into the biological mechanisms that may underlie post-traumatic stress disorder (PTSD). Researchers found that individuals diagnosed with PTSD showed reduced levels of the hormone oxytocin and elevated levels of vasopressin, a hormone involved in stress response. These findings suggest that an imbalance between these two hormones, particularly the ratio of vasopressin to oxytocin, could be a strong indicator of PTSD. PTSD is a condition that can develop after someone experiences a traumatic event. It is well-kn…