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Concussion
Rugby League is a contact sport. If you play it regularly sooner or later you will be concussed. We know a lot about concussion and about how to manage it so there is no lasting damage. We also know that if concussion is ignored and athletes rush their return to sport there can be permanent damage that gets worse, not better.
Your brain weighs a bit over a kilogram and feels a bit like a jelly. It floats in a bag (the dura) inside your skull, attached to your spinal cord and surrounded by a little bit (around 100ml) of watery fluid. You skull is hard. You brain is soft. When your head is moving and stops suddenly (like when you head butt someone's knee or shoulder) your brain keeps moving at the same speed you were until it bangs into your skull. The result is a concussion.
You probably shouldn't try this at home, but imagine throwing a jelly against a brick wall. The result is not pretty. Now imagine that the jelly is your brain. Yep, that's concussion. For total accuracy put the jelly in a plastic bag before you throw it against the brick wall. Throw it. Now put the jelly back together exactly how it was while keeping it in the bag. That's what your body has to do to heal a concussion. It's not easy and it takes time.
One more thing. After your brain has hit one side of your skull, it bounces back, and may hit the other side of your skull hard enough to cause injuries on both sides (or at both ends) of your brain.
recognizing concussion
managing concussion
pre-season testing
brain bleeds : extra-dural haemorrhage
brain bleeds : sub-dural haemorrhage
head injuries and alcohol