"Between 1800 and 2000 life expectancy at birth rose from about 30 years to a global average of 67 years, and to more than 75 years in favored countries. This dramatic change was called a health transition, characteri…
"Between 1800 and 2000 life expectancy at birth rose from about 30 years to a global average of 67 years, and to more than 75 years in favored countries. This dramatic change was called a health transition, characteri…
