Key points from article :
Debate over the age of the oldest-ever person can be solved now.
Jeanne Calment who died at the age of 122 years was believed to be the oldest-ever person.
Last January, research published in Rejuvenation Research presented evidence to contradict this.
Claimed that Jeanne died age 59, and her daughter Yvonne pretended to be her for financial gains.
Jeanne had 16 great-great-grandparents whereas Yvonne only had 12 due to inbreeding.
DNA analysis of a blood sample can identify the consanguinity if present.
Can determine if the sample actually belongs to the mother or the daughter.
If proven to be Jeanne’s, the blood sample can reveal clues to a long life.