The Concussion Legacy Foundation has started a brain bank in Sydney in the expectation that many families in Australasia will be seeking answers to why their loved ones have died of dementia - just as they have in the United States.

The foundation, the brainchild of former professional wrestler Dr Chris Nowinski, is "dedicated to advancing the study, treatment and prevention of the effects of brain trauma in athletes and other at-risk groups".

The foundation's website tells the stories of the donors - many written by family members struggling to connect the threads of the life of their