Transfusing old blood into young mice aged their systems

A team at UC Berkeley investigated the effects of transfusing blood from young mice into old mice and vice versa. They found that young blood only slightly improves some functions (e.g. brain cell development) in old mice, but old blood significantly decreases those functions in young mice. This points to something present in old blood that actually ages our systems, but that something is still unknown. Continue reading Transfusing old blood into young mice aged their systems

Resetting the Aging Clock: The science of age reversal

by Gabriel Filsinger figures by Anna Maurer Can biological aging be slowed or reversed? Time is constantly passing. Given enough time, we change as people and move between stages of life, transforming from children into young adults and evolving from parents into elderly grandparents. Although we may not notice it explicitly, time continually and unrelentingly propels us forward into the future. To us, time and … Continue reading Resetting the Aging Clock: The science of age reversal

Nature or Nurture: Why Do Women Live Longer Than Men?

 Women now tend to live longer than their male counterparts in every country in the world, but anatomy alone cannot fully explain why.  Looking to solve this riddle, researchers at the University of Wisconsin-Madison recently studied how the primary causes of death have changed over the past few centuries.  They found that men and women had comparable life expectancies during the 19th century and that the … Continue reading Nature or Nurture: Why Do Women Live Longer Than Men?