As for population problems, there’s likely to be a shortage of young people for quite a while before things balance out again one way or the other! The world’s demographics are changing in unanticipated ways:

http://www.fpri.org/ww/0505.200407.eberstadt.demography.html

If you think about it for just a moment, you’ll see that the article’s thesis — that we want to eliminate the plague of age-related disease and disability, but still die on the normal schedule — is self-defeating. As you make people healthier, you also make them live longer. People in robust health don’t just drop dead, and despite what one often hears, in the last four decades life expectancy at age 65 has climbed year after year. Today, people are far more likely to live to age 80 and over — and *vastly* more likely to be centenarians — than they were in the past, precisely because we’ve made inroads into determinants of accelerated age-related disease, such as tobacco, hypertension, and serum cholesterol. New medicines that target aging itself will cut into age-related disease and death at once, because being old and sick puts you at risk of death, and being young and healthy does not. Banish age-related ill-health, and you banish age-related risk of death: they are inevitably fellow-travelers.

“Some people [...] were opposed to immortality, in principle.”

Jamil laughed. “Why?”

“Ten thousand years’ worth of sophistry doesn’t vanish overnight,” Margit observed dryly. “Every human culture had expended vast amounts of intellectual effort on the problem of coming to terms with death. Most religions had constructed elaborate lies about it, making it out to be something other than it was — though a few were dishonest about life, instead. But even most secular philosophies were warped by the need to pretend that death was for the best.

“It was the naturalistic fallacy at its most extreme — and its most transparent, but that didn’t stop anyone. Since any child could tell you that death was meaningless, contingent, unjust, and abhorrent beyond words, it was a hallmark of sophistication to believe otherwise. Writers had consoled themselves for centuries with smug puritanical fables about immortals who’d long for death — who’d beg for death. It would have been too much to expect all those who were suddenly faced with the reality of its banishment to confess that they’d been whistling in the dark. And would-be moral philosophers — mostly those who’d experienced no greater inconvenience in their lives than a late train or a surly waiter — began wailing about the destruction of the human spirit by this hideous blight. We needed death and suffering, to put steel into our souls! Not horrible, horrible freedom and safety!”

Most likely you will be killed by plane crash, car accident, maybe war or nuke.

So do not worry about prolonged life, you will be dead some how.

Am I missing something here?