I suffered a concussion when I was nine, and a series of other concussions throughout my life, mostly sport related. Each time it got 'easier' to get concussed ie I didn't need to be hit as hard as other people to get concussion symptoms.

I was always better within hours or days, up until a not particularly violent impact during a soccer game last March lead me into 11 months and counting of basically feeling awful all the time and not being able to do anything (though I am on the way to recovery now), with the added terror about the long term damage I have clearly done to my brain and how it might affect me when I'm older.

Almost everyone in sport minimizes concussions, but every time you have one, you are doing some permanent damage to your brain. A concussion is a injury to the brain, how else could you explain the symptoms? It took me to keep getting hit until I got post concussion syndrome to even find out that it existed - your sons are lucky that you have found out about it while they are still young.

Best wishes to you all.