Aging and Longevity
43 episodes
#6358: Why Cross-Age Friendships Depend on Shared Places
Across 25 European nations, only 18% of young adults report a cross-age friendship, while fewer than 10% of older adults count one as a confidant.
#6259: What Facial Exercises Actually Change
In a 2018 JAMA Dermatology trial, blinded doctors estimated facial exercise participants looked nearly three years younger.
#6248: Why Death Might Harm Us Without Hurting
Thomas Nagel's deprivation account argues death harms us not through bad sensations, but by cutting off future goods we could have experienced.
#5863: What Shabbat Does to Your Brain That Sleep Can't
Shabbat's real power isn't sleep — it's psychological detachment. And the data says a vacation day doesn't do the same thing.
#5834: Dead Man's Switches: Alerts vs. Final Notices
Same mechanism, opposite goals: hardware that fires in two seconds when you fall, and services that wait sixty days to confirm you're gone.
#5711: Ireland's Offshore Islands: Who Lives There Now?
Ireland's offshore islands were dying for a century. Then the 2022 census showed the first real uptick. Here's what changed.
#5691: When the System Feels Rigged: A 180-Year Pattern
Life expectancy is stalling across the English-speaking world. History says that signal has appeared before — and what followed was reform or rupture.
#5584: What Happens When Isolation Isn't Chosen
Chosen solitude and forced isolation damage the body differently — and the science shows the damage isn't a one-way door.
#5551: Why Learning Makes Us Happier at Any Age
The credential isn't what makes learning feel good — choosing it is. What the research says about self-directed learning, aging, and hard times.
#5432: What Hospice Workers See at the Deathbed
A UK survey found 97% of palliative care staff witnessed deathbed phenomena. What they see — and why 92% never makes it into the chart.
#5418: Why Dehydration, Not Hunger, Is the Real Risk of a 25-Hour Fast
Twenty-five hours without water is a different problem than twenty-five hours without food. Here's the physiology of dehydration — and how to prepare.
#5162: Retirement Was Invented: Work, Aging, and the Pension Cliff
Retirement as a funded life stage is barely a century old. Here's what pre-industrial work lives actually looked like — and why the cliff-edge pers...
#5161: How Statistics Get Misread: A Field Guide
Averages, rates, correlations — the ten categories of statistics most likely to fool a general audience, and why the number is usually right.
#5145: What Life Expectancy Really Meant in the 1600s
That "people died at 35" statistic? It's mostly measuring dead children, not short adult lives.
#5027: The 670nm Sleep Light Myth: What That Number Really Means
That "670nm" on your sleep light isn't about melatonin at all. It's about copper atoms in your mitochondria — and the dose is probably fictional.
#5010: Why Vegetables Beat Fruit and Supplements
Vegetables do things fruit and supplements can't — from gut microbiome diversity to triggering your body's own antioxidant systems.
#4046: Why People Type in All Caps (It's Not Always Anger)
Three very different groups use all caps — and misreading their intent costs us real trust.
#3557: Does Your DNA Change Over a Lifetime?
DNA isn't a fixed blueprint. It mutates with age, and fathers pass those edits to their children.
#3534: The 90-Minute Blueprint: How Sleep Cycles Actually Work
N1, N2, N3, REM — what actually happens in each stage and how the cycle shifts across the night.
#3301: What 36 Really Means for First-Time Dads
Is 36 actually late for first-time fatherhood? The historical data tells a surprising story.
#3204: The Expectation Cascade: How to Live Your Own Life
Bronnie Ware's deathbed research reveals the #1 regret: not living true to yourself. How to escape the expectation cascade.
#3166: The Split in Insomnia Treatment: SOI vs SMI
Sleep-onset and sleep-maintenance insomnia have different biology, different drugs, and different treatments.
#3108: What Happens When Rent Outlasts Your Paycheck?
Millions of seniors face a retirement cliff as lifelong renting becomes the new normal. Can policy save them?
#2958: The Lost Art of Bench-Sitting
What Mediterranean bench-sitters know about companionship, longevity, and why doing nothing together matters.