General Discussion
In reply to the discussion: ZIMMERMAN TRIAL: Day 11, Tuesday, July 9, 2013 [View all]Which is quite fortunate for many victims.
If Zimmerman had shown any more severe symptoms, they would have taken him to the hospital, not the police station. I've known several guys who have sustained mild concussions, and except for the momentary "ponk" effect, all of them were mobile and speaking. Two were briefly woozy, but none of the three were knocked out.
Adrenalin is a very strong stimulant and will offset some of the impact anyway. With a very severe head injury it might make it worse (higher BP increasing internal swelling/bleeding).
Come to think of it, I had a non-mild concussion myself, and although I was briefly unconscious, it was very short, and I was up, thinking, moving and talking almost immediately. I could not have been out more than 15 seconds.
It was in a car accident, and I broke my hand and and a pretty serious head laceration with a lot of bleeding, but I got myself out of the car with severe damage and a crumpled door with one hand working only.