To date, the person who reached the oldest verifiable age in history was Jeanne Calment, a French woman. Born in 1875, she lived to be 122 years old and died in 1997.
While the average human life span has yet to reach such a staggering number, the percentage of people from around the world who are centenarians (aged 100 years or more) has been steadily increasing for the past 50 years. In 2011, the number of centenarians worldwide numbered 317,000 and is expected to increase to 3,224,000 by the year 2050, and to reach 17,795,000 by the end of the century (Evans et al. 2014).
Scientific research will likely never uncover a method to reverse aging, but ongoing studies may reveal ways to improve the quality ...