And traumatic brain injury is common, too: Every year, Americans suffer 1.7 million traumatic brain injuries, according to the Centers for Disease Control and Prevention.
The researchers suggested that concussions may cause abnormal clotting in the brain, or damage to the brain’s blood vessels — not just the carotid artery but any of the smaller ones that supply oxygen to the brain’s deepest recesses. That, in turn, may disrupt blood flow to a traumatic brain injury victim’s brain long after the dizziness or cognitive symptoms have subsided.
©2013 Los Angeles Times
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