It's true that few people get to celebrate their 100th birthday party. It turns out genetics plays a big role.
It may come as a shock to you, but trees and other plants are commonly infected by what's known as "mycorrhizal fungi".
A century ago, the average life-span for Americans was about 50 years. Today, the typical American lives to be about seventy-eight. What changed?
Lot's of people want to live longer. Find out the key to longevity on this Moment of Science.