Stem cells: The key to longevity?

Scientists recently analyzed the blood of a woman who lived a healthy life up to the age of 115. They were surprised to discover that 64% of her blood cells were descended from only two different blood stem cells. Is this the key to longevity? There’s reason to be cautious with these conclusions: 36% of this patient’s blood came from a much larger, diverse group … Continue reading Stem cells: The key to longevity?