Joy Kong, MDRegenerative Medicine Physician, Educator, and Entrepreneur

Is Our Biology Working Against Us?

27 Feb 2025 · 1 min

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0:53

Short excerpt from a YouTube video (creator: Joy Kong, MD) in which two speakers discuss why human bodies don't spontaneously resolve age-related problems. Main claims: humans historically had a life expectancy of about 30 years (speaker cites "hundred thousand years"), so evolutionary selection did not favor longer post-reproductive longevity; over the past ~150 years life expectancy increased by about 50 years (speaker claim), revealing age-related problems that earlier life spans did not expose. The speakers link age-related disease to a decline in stem cell release after the 30s, arguing insufficient stem cell reserve contributes to poorer repair with age.

Questions this video answers

About 30 years (speaker: "hundred thousand years with a life expectancy of about 30 years of age").

About 50 years (speaker claim).

Chapters

Isn't that strange? In our body are all the solutions already? But why isn't it doing it on its own? Why aren't people having all these stem cells in the bone marrow and they're not just coming out to help fix the problem?
It's a question that I had in my mind for a long time and one day kind of dawned on me that we have lived for the past, I don't know, hundred thousand years with a life expectancy of about 30 years of age. Longevity has never been selected in our evolution. Over the past 150 years we gained 50 years of life expectancy so we don't have the biology up to our 30s we're strong in recovery and healing. None of the problem that are so called age related problems have showed up. By 30s until your 30s you still are releasing quite a bit of stem cells so the decline of stem cells continues and then you just don't have enough stem cells. It's just our human biology.