Oh yeah I nearly forgot, concussion IS at least an mTBI
Anyways I nearly answered my own questions from a research article regarding this subject just now:
Quote:
ROTATIONAL ACCELERATION:
McLean (1995) argued that there were no cases of brain injury without head impact in his
investigation of a series of more than 400 fatally injured road users. Even in non-fatal impacts, it is
hard to imagine how the human neck can transmit enough energy to the head to cause brain injury
without a direct impact to the head. Brain injury is not generally associated with neck injury.
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This calms me a bit, but nevertheless, I will not attempt to do this little "trick" again since merely fearing something makes you dizzy can apparently make you dizzy ironically enough
