Author: We've doubled average human life in 100 years
Video Credit: Bleacher Report AOL - Duration: 04:39s - Published
Author: We've doubled average human life in 100 years
CNN’s Bianna Golodryga speaks to Steven Johnson, author of “Extra Life: A Short History of Living Longer,” about some of the discoveries and innovations that have led to the average human life expectancy almost doubling over the last century.
