Healthspan, Lifespan, and the Decade in Between
The gap between how long people live and how long they live well is now 9.6 years globally, and 12.4 in the US. It is growing. Here is what that means.
Topics science
How the body actually works, one system at a time.
Every organ here is treated as part of one network rather than a box on a chart. We follow how a system does its job, what it depends on upstream, and where its outputs turn up somewhere else entirely. That order matters, because most of what gets called a symptom is the far end of a chain that started elsewhere.
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The gap between how long people live and how long they live well is now 9.6 years globally, and 12.4 in the US. It is growing. Here is what that means.
Four cases where confident evidence turned out to be wrong, and the specific questions that would have caught each one before you changed anything.
Biologists have converged on a shortlist of processes that drive aging. Here is what each one means, and how far the human evidence actually goes.
Every cell in the human body requires energy.
Most people experience changes in their body every day:
The human body evolved in a very different environment than the one we live in today.
Most people approach health and wellness with big changes:
We are used to the idea of fast results.
One of the most important ideas in biology is something many people never learn about clearly:
Most people think of the body as a collection of separate parts.
Aging is usually described as something that simply happens over time.
Inflammation is often described as something harmful that should be reduced or avoided.
When people talk about energy, they usually mean how tired or awake they feel.
Most people think of health as a large and complicated topic with many separate factors.
Most modern wellness content is built around one idea: optimization.
Skin is often treated as the main focus of skincare and wellness.
Talks from the Watchlist that cover this system. Massy Labs did not make these; they are here because they are worth the hour.