Really? What's the life expectancy of someone living without doctors or modern medicine? For reference, 17th-century English life expectancy was only about 35 years.
The low life expectancy of old times is almost fully explained by child mortality. If you lived beyond, say, 15 years, you could expect to live nearly as long as we do today.
What? There is a pretty huge distance between what you suggest and living in nature a helicopter ride away from those things. Not that it is anymore than an anecdote but I live in nature and I have not had funerals of people under 85 so far.
