For life on planet Earth, all roads inevitably lead to death, but they’re not all paved the same. This is what Nan Hao, an associate professor in molecular biology at the University of California, San Diego, discovered several years ago. At his lab, Hao spends a lot of time with Saccharomyces cerevisiae — also known as baker’s or brewer’s yeast — studying how these single-celled organisms age, an endeavor that he thinks could inform how humans age, too.
