Wazungu's are a funny lot-they are always looking into why things work this and that way. They even tried to find the 'SPEED GENE' in kalenjin runners and now they've come up with longevity genes.
A newly discovered suite of 150 "long life" variants in about 70 genes allows scientists to guess, with 77 percent accuracy, whether a person can live into their late 90s or longer, a new study says.
Seems that some people have a genetic predisposition to a long life.
http://news.nationalgeog...ngevity-genetic-science/