Most of us can expect to live into our 80s, 90s and beyond. Yet from Medicare to financial planning, we still design for short lives and early retirement.
Category: life extension
The future of Longevity Research
Today thanks to progress in medicine and science our generation may live longer than any previous one. There wasn’t better time to start taking care of our health than today. Future is amazing. To participate in it we must to take care of our health today.
The Space Habitat Diaspora — Humanity Spreads Without Planets
Humanity may not colonize planets—we may build our own worlds. Explore how rotating space habitats could spread across the Solar System and beyond, forming a vast diaspora of artificial worlds that reshape civilization and interstellar expansion.
Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur.
Watch my exclusive video Settling Saturn’s Rings: https://nebula.tv/videos/isaacarthur–… SFIA Merchandise: https://isaac-arthur-shop.fourthwall… 🌐 Visit our Website: http://www.isaacarthur.net ❤️ Support us on Patreon: / isaacarthur ⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-a… 👥 Facebook Group:
/ 1,583,992,725,237,264 📣 Reddit Community:
/ isaacarthur 🐦 Follow on Twitter / X:
/ isaac_a_arthur 💬 SFIA Discord Server:
/ discord Credits: The Space Habitat Diaspora – Humanity Spreads Without Planets Written, Produced & Narrated by: Isaac Arthur Graphics from Bryan Versteeg, Jeremy Jozwik, Sergio Botero, Udo Schroeter Select imagery/video supplied by Getty Images 0:00 Intro — Rethinking What a World Can Be 2:37 Why Habitats Win on Physics, Engineering… and Scalability 10:13 The Birth of a Habitat Civilization 14:54 Nebula 15:54 Life Without Planets: Cultures That Grow in Steel Valleys 18:59 Resilience: Fragile Shells, Immortal Civilizations 21:37 The True Diaspora: Leaving the Solar System.
🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall…
🌐 Visit our Website: http://www.isaacarthur.net.
❤️ Support us on Patreon: / isaacarthur.
⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-a…
👥 Facebook Group: / 1583992725237264
📣 Reddit Community: / isaacarthur.
🐦 Follow on Twitter / X: / isaac_a_arthur.
💬 SFIA Discord Server: / discord.
Credits:
The Space Habitat Diaspora – Humanity Spreads Without Planets.
Written, Produced & Narrated by: Isaac Arthur.
Graphics from Bryan Versteeg, Jeremy Jozwik, Sergio Botero, Udo Schroeter.
Select imagery/video supplied by Getty Images.
0:00 Intro — Rethinking What a World Can Be.
2:37 Why Habitats Win on Physics, Engineering… and Scalability.
10:13 The Birth of a Habitat Civilization.
14:54 Nebula.
15:54 Life Without Planets: Cultures That Grow in Steel Valleys.
18:59 Resilience: Fragile Shells, Immortal Civilizations.
21:37 The True Diaspora: Leaving the Solar System.
Follistatin & Muscle Mass: Rethinking the Baseline
Follistatin is opening new questions around baseline muscle, fat distribution, and aging. The real shift: from chasing gains → to preserving capacity.
Dying stars are devouring giant planets, astronomers discover
A new study suggests that aging stars may be wiping out the giant planets that orbit closest to them. The research, led by astronomers at UCL (University College London) and the University of Warwick, provides fresh evidence that these planets can be pulled inward and destroyed as their host stars evolve.
Stars like our Sun eventually run out of hydrogen fuel. When that happens, they begin to cool and expand, entering a phase known as a red giant. Scientists estimate that the Sun will reach this stage in about five billion years.
The new findings, published in the Monthly Notices of the Royal Astronomical Society, are based on observations of nearly half a million stars that have recently entered this “post-main sequence” phase of their life cycle.
The long-lived immune system of centenarians
What is unique about the immune system of people who live to extreme old age? Here the authors describe that centenarians may achieve such longevity through several mechanisms, including limiting the pathological effects of inflammageing and immunosenescence, preservation of immune surveillance, sustained gut microbial diversity and maintenance of intestinal barrier integrity.
Arthritis Cure BREAKTHROUGH: Regrow Young Cartilage
Stanford published a paper in Science showing they regrew joint cartilage in aging mice — and in human tissue samples taken from knee-replacement patients — by blocking a single enzyme called 15-PGDH. It’s being hyped as the end of knee and hip replacement surgery. The science is real. The hype is getting ahead of what the paper actually says.
This episode walks through the study itself — the three experiments, the surprising mechanism (which doesn’t involve stem cells at all), and the actual clinical timeline.
Bottom line: the mechanism is a genuinely new paradigm for tissue regeneration. The human osteoarthritis trial? \.