What factors contribute to the average lifespan of humans?

What factors contribute to the average lifespan of humans?

Aubrey de Grey (Chairman, Methuselah Foundation) gives expert video advice on: What are the 'seven deadly causes of human aging'?; How are baby-boomers redefining old age?; What do you consider an ideal lifespan? and more...

At the moment, in the industrialized world, about 90% of deaths are due to age-related problems, due to causes that young people, more or less, never die of. So, in other words, the seven types of damage that occur and accumulate during life, and that eventually cause age-related diseases, pathology, frailty, and so on--those are the major reasons why we die at the age we do.