Researchers publishing in the European Heart Journal report that young heart stem cells may be able to rejuvenate older hearts and may even reverse other signs of aging.

Researchers from the Cedars-Sinai Heart Institute in Los Angeles, CA, found that injecting aged rats with specialized stem cells taken from the hearts of newborns appeared to rejuvenate the older animals.

The treatment improved heart function, increased exercise capacity, and reversed several biomarkers of aging.