nytimes October 4, 2021 4:01pm Losing Your Hair? You Might Blame the Great Stem Cell Escape. #hair #stemcells #research #agechronological #ruiyi #natureaging #northwesternuniversity #science #news Losing Your Hair? You Might Blame the Great Stem Cell Escape. By observing mouse hair follicles, scientists discovered an unexpected mechanism of aging. “If I didn’t see it with my own eyes I wouldn't believe it,” one said.