Immortality

====Trauma====
[[Physical trauma]] would remain as a threat to perpetual physical life, as an otherwise immortal person would still be subject to unforeseen accidents or catastrophes. The speed and quality of [[paramedic]] [[disaster relief operation|response]] remains a determining factor in surviving severe trauma.<ref name=walker>{{cite book |last=Walker |first=Peter |date=1991 |title=International Search and Rescue Teams |series=League Discussion Paper |publisher=[[IFRC|League of the Red Cross and Red Crescent Societies]] |place=Geneva, CH}}</ref> A body that could automatically repair itself from severe trauma, such as speculated uses for [[nanotechnology]], would mitigate this factor. The brain cannot be risked to trauma if a continuous physical life is to be maintained. This aversion to trauma risk to the brain would naturally result in significant behavioral changes that would render physical immortality undesirable for some people.