High profile dementia diagnoses have, in recent years, called for bans, or restrictions, on actions like heading a football and challenges in rugby.

We are not going against 'the experts here' but, seeing though the brain is connected to every part of the body, by blood vessels and through the nervous system, we are taking the holistic approach.

Did you know that vitamin D is vital in the wound healing process? (source here)

So, could a previous injury (maybe even internal), trauma or stress, have 'used up' all the body's reserves of vitamin D thereby allowing amaloid build-up?

After all, footballers suffer leg, ankle and knee traumas far more often that they head a ball.