Kerry said that he hit his head but that in using the word concussion with the writer he meant " the concussion of the explosion " and never said he had " a cerebral concussion " because that diagnosis " is not in my medical records ."
12.
Single powerful blows to the head ( particularly the jawline and temple ) can produce a cerebral concussion or a carotid sinus reflex with syncope and cause a sudden, dramatic KO . Body blows, particularly the liver punch, can cause progressive, debilitating pain that can also result in a KO.
13.
Before the 1970s, the most common use of the police baton was to simply " brain " suspects ( strike their heads with a full-force overhand motion ) in order to stun them or knock them unconscious via cerebral concussion, similar to the pre-baton practice of buffaloing with the barrel of a revolver.
