Brain concussion damage could linger for upto year, says study / Harsh flu season has health officials worried about brain complications in children / Cramer suffers 'severe concussion' after fall in North Dakota / A member of Parliament suffered a debilitating concussion -- and learned firsthand how little is known about the ways head injuries affect women / How concussion can lead to brain damage - and what to do to prevent it / 'Rich in symbolism': Smother rule change won't reduce concussions / 'Sex With a Brain Injury' reveals how concussions can test relationships / Are mini seizures behind Mitch McConnell’s frightening freeze episodes? Doctor says knock-on effects of concussion earlier this year may be to blame