Will children born today live to 100? Don’t bet on it, researchers say. A new study says that while life expectancy numbers are still inching up worldwide, we’re approaching the upper limit of human longevity. “We’re squeezing less and less life out of these life-extending technologies. And the reason is, aging gets in the way,” says S. Jay Olshansky, a University of Illinois-Chicago researcher who was lead author of the study. Read more from @AssociatedPress.