====== Post-concussion syndrome ====== //Post-Concussion Syndrome// (PCS) refers to a range of reported symptoms which persist - sometimes for months or even years - after a brain concussion event. PCS is estimated to affect 15-30% of people who have had concussion injuries. Symptoms can be physical, e.g. nausea, dizziness, drowsiness etc, or psychological, such as anxiety, mood-swings, irritability etc. The causes are not yet known. See : [[https://en.wikipedia.org/wiki/Post-concussion_syndrome#Causes|Wikipedia]]. There may be some as-yet-undetermined physical damage to the brain, and/or factors associated with the trauma of the event. //Note : //PCS is now under close scrutiny due to the discovery that repeated, though relatively minor, concussion events can cause cumulative damage - especially in sports, e.g. boxing, rugby, soccer etc.