over population and wars over food

The first thing that springs to mind would be homicide, over inheritance. I wold also predict a higher suicide rate.

We'd finally get so bored and overpopulated that suiced would be the leading cause of death.

1) "In medicine, death by natural causes is a loosely-defined term used by coroners describing death when the cause of death was a naturally occurring disease process, or is not apparent given medical history or circumstances. Thus, deaths caused by active human intervention (as opposed to the failure of medical intervention to prevent death) are excluded from this definition, and are described as unnatural deaths. The majority of deaths in most countries are due to natural causes, and the majority of those deaths occur in old age. In the United States for example, the most common natural cause of death is heart disease, accounting for 30% of all deaths. Other common natural causes are stroke, Alzheimer's disease, congenital anomalies, genetic disorders (such as cystic fibrosis), serious infections, and respiratory disorders (figures as of the year 2000)." Source: http://en.wikipedia.org/wiki/Natural_death 2) "Unnatural death is a category used by coroners and vital statistics specialists for classifying all human deaths not properly describable as death by natural causes. Hence it would include events such as: - accident - execution - homicide - misadventure - being attacked by insects, reptiles, fishes, lions, tigers, bears, stingrays, or other wild animals - adverse outcome of surgery - suicide - terrorism - war" Source: http://en.wikipedia.org/wiki/Unnatural_death 3) We are considering the case where all those illnesses, anomalies or disorders would have a cure. And where one would not even be able to die just of old age. In this case, everyone would just die an unnatural death - or be immortal. To survive unnatural death causes over centuries, some luck would certainly be required. Immortality would not be necessarily easy to endure, just because or being bored or because of a natural decay of the body. This could eventually motivate some people to kill themselves. Psychology would have a collective problem to solve. 4) An important issue would be if we could keep the great part of our autonomy in old age: - if yes, there would not be problems with babysitting - if not, we would have to find some possibilities to assist old people, because it would be an impossible task for the young Surpopulation could also eventually be an issue, if we don't find a possibility to get new resources or recycle what we have. 5) However, it could be an interesting goal to achieve this. And I would enjoy it, I think.

I read a really interesting article on this very recently but I can't remember where..It was based on the fact that if one has a 1 in 14500 chance of dying by accident in a year..then that would mean that your average lifespan would be 14500 years...So death would essentially still be 'inevitable'.