You might think that you have heard everything there is to know about how long humans can live, but even in this overworked corner of human research, there is always something new.
Over the last few decades. we have watched in awe as longevity statistics have exploded. For people in industrialized countries, life expectancy, at the beginning of the 20th century, was between 30 and 45 years, rising steadily to about 67 years by the end of the century. Life expectancy continues to rise until now, people who live to age 100 or older are the fastest growing demographic. In the past, researchers have looked to improvements in health care, nutrition, and standard of living to explain why some people live significantly longer than others. Other researchers have redirected their attention to the habits of super-centenarians, or the detection of ‘blue zone’ areas of the world in which people live to an exceptional age.