Concussion, even in its mildest form, can have lasting effects on the individual in a way we're only just beginning to understand. Mild Traumatic Brain Injuries (mTBI), concussion and post-concussion syndrome have previously been conservatively managed with recommendations for 'rest'. But even mild brain injuries and post-concussion syndrome can have an enormous impact on life, long after the 3 months during which they are expected to resolve. There are also significant differences between the way in which concussion affects men and women respectively, as this new research shows.