#lifespan

Well, not necessarily. The pair have a decent relationship, a little rocky at times (mostly because of Artemis) but decent.

No, what I mean by "Doomed" is the age difference between the two.

Of course it's been established that humans and fairies have a big age difference compared to human beings. It has also been established that lifespans can be extended with fairy magic when a fairy and human marry (Trouble and his wife from book 7)

𝗛𝗨𝗠𝗔𝗡𝗦 𝗠𝗔𝗬 𝗛𝗔𝗩𝗘 𝗔 𝗡𝗔𝗧𝗨𝗥𝗔𝗟 𝗟𝗜𝗙𝗘𝗦𝗣𝗔𝗡 𝗟𝗜𝗠𝗜𝗧 𝗢𝗙 𝟭𝟱𝟬-𝟭𝟵𝟬 𝗬𝗘𝗔𝗥𝗦

A new study suggests that humans may have an upper biological limit to lifespan, determined not simply by disease but by the body's gradually fading ability to recover from stress and damage.

Researchers analyzed long-term health data and found that resilience, the capacity to bounce back after illness or physical strain, steadily declines with age.

The models indicate that diminishing biological resilience may eventually cap human longevity.

While medical breakthroughs could continue to increase average life expectancy, they are unlikely to push the maximum human lifespan beyond 150 to 190 years, even in an optimistic scenario.

Scientists caution that the findings do not mean longer, healthier lives are impossible.

I recently finished Lifespan by David Sinclair, a Harvard scientist who argues that aging is not an inevitability but a disease, and one he thinks we can treat. It was a good excuse to dust off half-remembered lessons from biology and chemistry class, and Sinclair, writing with journalist Matthew LaPlante, does the thing most scientist-authors cannot. He keeps the science accessible without draining the story out of it.

The idea that stuck with me is not the lab work, though. It is what a longer life would do to how we live it. Sinclair is careful, and correct, that curing aging is not the same as immortality. But even a few extra healthy decades would change us. For older folks it might be a second chance, time to right some wrongs, take more chances, go on that adventure before it is too late. For younger ones I am less sure it is a gift. Knowing you have decades to spare can breed complacency, and a little scarcity of time is part of what keeps us turned on and careful about how we spend it.

I also kept thinking about Scythe by Neal Shusterman, my favourite book. It imagines humanity a few centuries after technology all but cured aging and death, where people can reset their bodies to their twenties and the dead are revived, and the quiet cost is a comfortable, stagnant world where a lot of people have lost the sense that life is going anywhere. Sinclair mostly skips that question. Cure aging and you still have to solve meaning.

One fair warning for the scientist in you: he is light on counter-evidence, and some researchers have pushed back hard on his claims about reversing aging. But airtight proof is not why you pick up books like these. You read these books for the hope, and hope and looking forward are powerful motivators, so I would not keep it only for the science-curious. It is a big-idea read for anyone willing to sit with a big what-if.

Lifespan: Why We Age—and Why We Don't Have To by David Sinclair

Optimistic. Ambitious. Provocative. ⭐️⭐️⭐️✨ 3.5/5

Lifespan by David Sinclair strikes a balance between science and storytelling that most experts miss. Too many rigorous authors land on one extreme, either too academic or too much narrative, and Sinclair threads the needle.

He does commit the usual sin of not engaging enough counter-evidence, so I would want to read the journal articles myself before buying his theories wholesale. (I am not going to. I do not have the hard science background to understand it). I listened to this as an audiobook over many months, so I cannot point to the one thing that stuck.

What I can say is that I am glad there are people out there chasing the secrets of lifespan. Science has already shielded us from accidental death and stretched life expectancy through surgery and medicine, so there is no reason to stop pushing. How do we make a healthy life even healthier?

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