Half of babies born in rich world will live to 100

More than half of babies born in rich nations today will live to be 100 years old if current life expectancy trends continue, according to Danish researchers. Increasing numbers of very old people could pose major challenges for health and social systems, but the research showed that may be mitigated by people not only living longer, but also staying healthier in their latter years.

The study showed that by 2050, its population will be substantially older and smaller than now -- a situation it said was now typical of rich nations.

Read the full article.