In this documentary one of the main and recurring injuries that gets brought up multiple times is concussion. So if you play rugby yourself or have family that do it is important for you to be able to see and recognise the symptoms of concussion and for you to know what to do if you believe you or a member of your team or family has a suspected concussion. As in sever cases it could be life threatening. 

The main resource you should referee to is the head case initiative as it tells you how to recognise the symptoms and what to do if you have a suspected concoction.