The Hebrew University of Jerusalem’s Dr. Salomon Israel was part of an international team that found a way to measure the aging process in young adults. The results may eventually lead to the prevention of age-related diseases by slowing down the aging process itself.
http://new.huji.ac.il/en/article/27136
http://www.pnas.org/content/early/2015/07/01/1506264112.full.pdf