Longevity & Aging Science

Watch

• Why do our bodies age? - Monica Menesini ↗TED-Ed
• The Formula for Successful Aging | Gary Small | TEDxUCLA ↗TEDx Talks
• Longevity: can ageing be reversed? ↗The Economist
• Can ageing be delayed, stopped or even reversed? BBC News ↗BBC News
• More life - Decoding the secret of aging | DW Documentary ↗DW Documentary
• Aging in the U.S. (full documentary) | FRONTLINE ↗FRONTLINE PBS | Official

Read

• Lifespan: Why We Age—and Why We Don't Have To ↗An accessible yet authoritative exploration of the latest scientific breakthroughs in aging, offering a provocative vision of a future where extended healthy lifespans are within reach.David A. Sinclair, Matthew D. LaPlante
• Ageless: The New Science of Getting Older Without Getting Old ↗A lucid and engaging primer on the biological mechanisms of aging, demystifying complex science and outlining the promising therapies on the horizon.Andrew Steele
• Ending Aging: The Rejuvenation Breakthroughs That Are Bringing Us Closer to a World Without Old Age ↗A foundational text for the radical proposition that aging is a solvable engineering problem, laying out a comprehensive strategy for achieving 'engineered negligible senescence'.Aubrey de Grey, Michael Rae
• The Hallmarks of Aging ↗This seminal review article defines the nine molecular and cellular pillars of aging, providing a crucial framework for understanding and targeting the aging process.Carlos López-Otín, Maria A. Blasco, Linda Partridge, Manuel Serrano, Guido Kroemer
• Geroscience: linking aging to chronic diseaseThis influential piece articulates the 'geroscience hypothesis,' positing that targeting fundamental aging processes can prevent or delay multiple age-related diseases simultaneously.James L. Kirkland, Tamara Tchkonia

Voices to follow

• David Sinclair ↗A leading proponent of the idea that aging is a treatable disease, his work explores genetic interventions to extend healthy life.Professor of Genetics, Harvard Medical School
• Aubrey de Grey ↗A controversial but influential figure, he advocates for radical life extension through engineered negligible senescence, pushing the boundaries of what is considered possible.Chief Science Officer, SENS Research Foundation
• Andrew Steele ↗His accessible writing demystifies the science of aging, making complex biological processes understandable to a broader audience.Computational biologist and science communicator
• Nir Barzilai ↗His research focuses on the genetics of exceptional longevity, seeking to understand the biological mechanisms that allow some individuals to live exceptionally long and healthy lives.Director, Institute for Aging Research, Albert Einstein College of Medicine

Glossary

• AgingAging is the natural process where your body gradually changes over time, leading to a decrease in how well your cells and organs work. It's what causes wrinkles, grey hair, and makes you less energetic as you get older. For example, your grandparents might find it harder to run or lift heavy things than they used to, which is a normal part of aging.
• Anti-aging (Interventions)Anti-aging interventions are strategies, treatments, or lifestyle changes aimed at slowing down, stopping, or even reversing the aging process to extend healthspan and lifespan. This could involve things like specific diets, exercises, or future medicines. For example, eating a balanced diet and exercising regularly are common anti-aging practices that help keep your body young and healthy.
• Biomarkers of AgingBiomarkers of aging are measurable biological signs in your body that can indicate your "biological age" – how old your body seems on the inside – rather than just your chronological age (how many years you've lived). These can include things like changes in your DNA or certain proteins. For example, a blood test that measures specific changes in your cells could be a biomarker telling you if your body is aging faster or slower than expected.
• Cellular SenescenceCellular senescence happens when cells stop dividing and growing but don't die off; instead, they hang around and can release harmful substances. These "zombie cells" are thought to contribute to aging and age-related diseases. For example, scientists are researching ways to remove senescent cells from the body to potentially slow down aging.
• CentenarianA centenarian is a person who has lived to be 100 years old or more. It's a special milestone because reaching this age is still quite rare. For example, your great-grandmother would be a centenarian if she celebrated her 100th birthday.
• Genetics (of Aging)The genetics of aging refers to how your genes, which are the instructions inside your cells, influence how quickly or slowly you age and your chances of living a long life. Some people inherit genes that might help them live longer or stay healthier. For example, if many people in your family have lived to be very old, it might suggest a genetic predisposition for longevity.
• GerontologyGerontology is the scientific study of aging in all its aspects, including the biological, social, and psychological changes that happen as people get older. Scientists in this field try to understand why and how we age. For example, a gerontologist might study how diet affects the aging process in different communities.
• HealthspanHealthspan is the period of your life during which you are generally healthy, active, and free from serious diseases or disabilities. It's not just about how long you live, but how long you live well. For example, someone who lives to 90 but stays active and independent until 85 has a healthspan of 85 years, even if their lifespan is longer.
• LifespanLifespan is simply the total length of time an individual or a species lives from birth to death. It's the maximum number of years someone can expect to live. For example, if a person lives to be 85 years old, their lifespan was 85 years.
• LongevityLongevity means living for a very long time, often longer than the average person. It's about how long an organism, like a human, can survive. For example, a tortoise known to live over 150 years shows incredible longevity.

Threads 7

Where this connects to other fields, and why it's worth knowing.

• Risk, Failure, and Resilience Business

  After adulthood, your chance of dying roughly doubles every eight years, older and older, steeper and steeper. Weirdly, that's the exact curve you get from a machine slowly running out of its spare, backup parts. Engineers who study why machines fail draw the same graph as scientists who study why we age.

• Corporate Finance Business

  In finance, a 'discount rate' measures how much you shrug off future money compared to cash today. That same impatience that makes people skip saving also makes them skip exercise and checkups that pay off decades later. Whether it's your bank account or your aging body, valuing 'future you' too cheaply leads to under-investing in them.

• Business Models Business

  Think of cancer as a business plan that grabs every bit of profit right now and destroys the company doing it. One cell breaks the rules to grow fast and selfishly, and in feeding itself it kills the whole body it lives in. Short-term greed, total long-term collapse, whether it's a cell or a company.

• Immigration & Border Policy Political Science

  Here's an awkward twist: the countries most eager to shut out immigrants are often the ones aging fastest, with too few babies being born. A shrinking, graying population can't fund the pensions and care of its elderly without young newcomers. In the end, cold demographic math tends to overrule the loud politics.

• The Meaning of Life Philosophy

  The longevity industry is racing to add more years to your life. But research on meaning suggests a life feels 'complete' through purpose, not length, more like a good story than a long one. You can't stretch your way to significance; extra decades don't automatically add up to a meaningful life.

• The Population Question Sociology

  Imagine science lets people live to 100, but the last 20 years are spent sick and needing constant care. You haven't fixed old age, you've just made more of it. So chasing a longer life without a longer healthy life could actually make the 'too many old people to support' problem worse, not better.

• The Loneliness Epidemic Sociology

  Being lonely for years raises your risk of early death about as much as smoking fifteen cigarettes a day. That means friendship isn't just nice, it's a real ingredient in how your body ages. Scientists now treat social connection as hard biology, not a soft extra.