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# Most Anti-Aging Advice Doesn't Hold Up
- URL: https://sharperdaily.com/most-anti-aging-advice-doesnt-hold-up/
- Published: 2026-10-16T12:06:55.000Z
- Updated: 2026-10-16T12:06:55.000Z
- Author: Kendall Kelly
- Tags: "friday"

SharperDaily

| ![SharperDaily](https://mcusercontent.com/1d689948ed30d6a2a41271ff9/images/a246dcd2-5b0e-1024-eb06-7ff8475417de.png) TODAY'S EDGE The most useful thing you can do with a week's worth of incoming information is let some of it settle before deciding what it means. Friday is not the end of the news cycle — it is the first moment you have enough distance to see the shape of it. Two days away from the feed is not falling behind. It is the condition for actually catching up. THE BRIEF In the News [The Leap Second Is Almost Gone](https://www.aljazeera.com/news/2026/10/15/clock-ticking-for-leap-second-why-timekeeping-could-change-forever?ref=sharperdaily.com) Global timekeeping authorities are moving to abolish the leap second, the periodic one-second adjustment that keeps atomic clocks aligned with Earth's rotation. Atomic time and astronomical time have drifted apart by nearly a full minute since 1972, and the patches required to close that gap keep growing more disruptive for digital infrastructure. GPS satellites, financial trading systems, and telecommunications networks all depend on synchronized clocks — and a single mishandled leap second in 2012 took down Reddit, LinkedIn, and Qantas systems simultaneously. In Health [Most Anti-Aging Interventions Don't Age Well](https://www.medicalnewstoday.com/articles/what-can-and-cant-slow-down-aging-new-study-offers-clues?ref=sharperdaily.com) A broad review of longevity interventions finds that caloric restriction and certain drugs show genuine biological effects, while most popular supplements and lifestyle hacks show little measurable impact on aging markers. The review draws a sharp line between interventions that change how cells age and those that only change how people feel about aging — a distinction the wellness industry has little incentive to advertise. What holds up is narrower and less glamorous than the supplement aisle suggests: sleep quality, resistance training, and not smoking remain among the strongest signals in the data. ![meme](https://mcusercontent.com/1d689948ed30d6a2a41271ff9/images/7ddb084f-dc76-caba-9939-264466333e51.gif) In Business [Anthropic Revenue Surges, Investors Still Nervous](https://www.bbc.com/news/articles/cqzjx448vxkgo?ref=sharperdaily.com) Anthropic's revenue has grown sharply ahead of its anticipated stock market listing, but investors remain unsettled by the scale of spending required to compete at the frontier of AI development. The company burns capital faster than its revenue grows, which is a common early-stage pattern — except that Anthropic's own IPO filing cited existential AI risk as a material business liability, which is not a typical line in a prospectus. The deeper tension is that the companies best positioned to manage AI risk are also the ones most dependent on continuing to build it. WEEKEND SHARP Teach Something You Just Learned Pick one thing you learned this week and explain it out loud to someone else. The act of explaining forces your brain to reorganize fragmented knowledge into coherent structure. Cognitive scientists call this the protégé effect: people who teach material retain it significantly better than those who simply review it. The explanation exposes gaps you did not know existed. You discover what you actually understand versus what you only recognized when reading. Choose one concept from this week and explain it over dinner or a walk. Do not use notes. Speak it through from memory, in plain language. If no one is available, write a short explanation to an imaginary curious friend. The constraint is the same: no jargon, no hedge words, just the idea. Done weekly, this habit turns passive reading into durable knowledge you can actually use. ![meme](https://mcusercontent.com/1d689948ed30d6a2a41271ff9/images/c2b1f610-9ecb-2fbe-fd4f-5841807fa58e.gif) WEEKEND READS Start This Weekend [A Gentleman in Moscow by Amor Towles](https://www.amazon.com/s?k=A+Gentleman+in+Moscow+Amor+Towles&ref=sharperdaily.com) A Russian count is sentenced to house arrest in a luxury hotel in 1922 and proceeds to build an entire life within its walls over the next three decades. It earns the commitment because the world Towles constructs inside that building becomes more dimensional than most novels manage with an entire continent. *Fiction, \~14-hour read* Breeze Through [The Suffrage of Elvira by V.S. Naipaul](https://www.amazon.com/s?k=The+Suffrage+of+Elvira+VS+Naipaul&ref=sharperdaily.com) Naipaul's sharp early comic novel follows a Trinidad village's first democratic election, where bribery, superstition, and pure farce immediately take over. It is worth finishing in a single sitting because the satire has not dated a day — democracy being gamed by people who have no idea what they are doing is an evergreen subject. *Fiction, \~5-hour read* One Sitting [How Do Fungi Keep the Planet Healthy?](https://www.quantamagazine.org/how-do-fungi-keep-the-planet-healthy-20261015/?ref=sharperdaily.com) Evolutionary biologist Toby Kiers explains how underground fungal networks trade nutrients with plants, maintain carbon storage, and negotiate with their partners in ways that look remarkably like markets. This one reframes soil as an economy rather than a medium, and you will not look at a patch of ground the same way again. *Essay, \~25-minute read, Quanta Magazine* WEEKEND WATCHES Series The Prisoner A British intelligence agent resigns abruptly and wakes up in a surreal, inescapable village where everyone is known only by a number. It earns a multi-episode commitment because the show was asking questions about surveillance, identity, and institutional control in 1967 that feel sharper now than they did then. *Psychological thriller, available on streaming and archive platforms* Movie The Parallax View (1974) A journalist investigates a political assassination and finds the trail leading somewhere the logic of conspiracy films rarely goes. Alan Pakula made this before All the President's Men and it is, if anything, more unsettling — the institutional machinery here does not crack under investigation, it absorbs it. *Thriller, available on streaming platforms* Short Watch [Why Is It So Easy for Birds to Spread Illness?](https://www.youtube.com/watch?v=bHB5iiDDJ-s&ref=sharperdaily.com) The biological and behavioral mechanics that make birds such effective disease vectors are more specific — and more alarming — than the usual "migratory pathways" explanation most people have heard. Worth eight minutes if you have ever wondered why avian flu keeps becoming everyone's problem. *TED-Ed, \~6 min, YouTube* QUICK HITS **TOOL —** [Open Source Alternative To](https://www.opensourcealternative.to/?ref=sharperdaily.com) is a directory that finds free, open-source replacements for popular paid software — useful when you want to cut a subscription without losing the capability. **STAT —** The world's oldest known living tree, a Great Basin bristlecone pine named Methuselah, was already more than 2,800 years old when the Roman Republic was founded — it is currently estimated at over 4,800 years old and still producing viable seeds. **QUOTE —** “The moment you make a mistake in pricing, you're eating into your reputation or your profits.” — Katharine Prentice Graham \[publisher, The Washington Post\] ![Anthony](https://mcusercontent.com/1d689948ed30d6a2a41271ff9/images/c7e5dad6-3c8c-e8e2-ec77-aade129e45dc.png)Stay Sharp, Anthony Tell me what landed and what didn't. Write me at [feedback@sharperdaily.com](mailto:feedback@sharperdaily.com). [SharperDaily.com](https://sharperdaily.com/) SharperDaily is a free daily eletter from [OneBlade, Inc](http://www.onebladeshave.com/?ref=sharperdaily.com) — makers of the Original Luxury Razor. We believe everyone should strive to be as sharp as possible in all aspects of their lives. |
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