Representative microscopy image of aged skin with increased DNA-damage (depicted in green) within telomeres (in red), a biomarker associated with cellular senescence and aging. Mayo Clinic researchers have found that senescent cells — non-dividing “zombie” cells — accumulate in the skin as people age and may influence aging in other parts of the body. Their recent study revealed that transplanting senescent skin cells into a preclinical model revealed that they not only caused that senescence…