An expert on biological aging used 4 methods to go back 4 years to their own biological age.

man in green crew neck shirt smiling

Steve Horvath was the first to discover that sputum DNA could be used to estimate a person’s rate of physical aging. “It was very interesting at the time that you spit in a cup, and you measure the age,” the biostatistician previously told Insider. Simply put, his initial clock, created at UCLA in 2011, could … Read more