Most people know the fight-or-flight response, a survival mechanism related to threatening situations and events. In recent years, in no small part due to high-profile legal cases involving sexual ...

Patients diagnosed with posttraumatic stress disorder (PTSD) can experience symptoms that include under-expression of emotions, such as numbness, as well as over-expression, such as rage outbursts.

DEAR ABBY: My sister-in-law “Bethany” has been diagnosed with PTSD from her military service. For the past 15 years, Bethany has picked fights with my wife, her sister, over anything and everything.