everyone wants more research. but the dangers of concussion have been discussed for decades. so how much did rugby union know about it? well, more than you might think. as far back as 1975, the then international rugby board held a medical conference in dublin where head injuries were discussed, and they were warned by neurosurgeon geoffrey vanderfield that concussions needed to be taken seriously, as even a slight injury could be life—threatening. the rugby authorities reacted, ruling players had to take a three—week break after a suspected concussion, and they continued to get advice from experts over the following decades. in 1992, at a rugby medical conference in new zealand, the message from two neurosurgeons is pretty blunt. they say there's good evidence of some permanent effect from a single concussion. and if they have a third concussion, they shouldn't be selected to play again and should be advised to take
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