concussion

My 16-yr old son fell down a flight of stairs and sustained a fractured skull and had some small bleeds in his brain (classed as a moderate TBI) back before Christmas. My emails with DAN suggests a moderate TBI should stay out of the water and away from diving for 1 year. My question is once...

I am Naui Certified from when I was in my 20's. I had open water 2 and one advanced course in ice diving completed. Some recreational diving in the Caribbean but most of it was cold water diving as a young enthusiast. Looking back. I was a relaxed , fit, normal weight diver who never used much...