John Cox

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Tagged longevity · everything

Evolutionary biologists reveal how exercise unlocks human longevity

Harvard evolutionary biologists propose that humans' exceptional longevity compared to other primates evolved because our ancestors needed to stay physically active and healthy into old age to provision and care for their grandchildren—a role requiring sustained energy expenditure that our bodies are biologically designed for. The research suggests that physical activity in later life evolved to regulate fat storage and reproductive hormones while simultaneously triggering cellular repair processes, and modern sedentary lifestyles create a dangerous mismatch between our activity-dependent biology and our desk-bound existence. The authors argue that maintaining lifelong physical activity, particularly in older age, is essential to preventing the chronic diseases of aging that plague industrialized societies where humans are uniquely inactive.

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Can humans live forever? | Scientific American

Aging is not inevitable wear-and-tear but results from the declining effectiveness of our cells' repair and maintenance systems, which become damaged through interconnected biological processes including DNA deterioration, mitochondrial dysfunction, and chronic inflammation. Scientists are pursuing multiple strategies to slow or reverse aging—from caloric restriction and drugs like rapamycin to more radical cellular reprogramming using Yamanaka factors, which can revert adult cells to an embryonic state and have shown promise in regenerating tissue in mice. While no biological law prevents life extension, the extraordinary complexity of aging and practical obstacles like side effects and regulatory hurdles mean dramatic lifespan increases remain unlikely, though evidence suggests diet, exercise, sleep and social connection can meaningfully improve healthspan.

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The Peptide People Are Using to Fix Their Sleep

Piece traces the TikTok-fueled trend of using sermorelin, an unregulated growth-hormone-mimicking peptide, to fix poor sleep, following biohacker Joe Scugoza's experience alongside anecdotes from Huberman and online forums describing initial REM disruption that resolves after a couple weeks. Sleep doctors interviewed push back hard, noting the science is thin (mostly a single 1998 study), the compounded drugs are unregulated and potentially contaminated, and there are real long-term risks like accelerated tumor growth—concluding that proven alternatives like resistance exercise are safer bets than what one doctor calls "hype dressed in real biology."

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83-Year-Old Triathlete Joseph Maroon Shares the Six Daily Supplements He Swears By

Joseph Maroon, an 83-year-old neurosurgeon and competitive triathlete, credits his transformation from poor health at 40 to his current fitness level to a combination of six daily supplements—fish oil, turmeric, fisetin, resveratrol, trimethylglycine, and magnesium—along with a Mediterranean diet and avoidance of processed foods. Each supplement serves a specific function, from fish oil's cardiovascular benefits to magnesium's support for the intense exercise required in his seven triathlons since age 53. Maroon's regimen began as a response to depression and poor eating habits following personal losses, demonstrating that significant lifestyle improvements can start at middle age.

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22 Ways To Feel (And, Okay, Look) 5 Years Younger

Men's Health synthesizes recent longevity research into 22 practical strategies for slowing biological ageing, from cognitive training and strength work to dietary approaches like calorie restriction and fermented foods. The piece argues that while biological age is influenced by genetics, controllable factors—including exercise intensity, brisk walking, gut health, dental hygiene, and blood pressure management—can reduce biological age by years or even decades. Rather than endorsing expensive anti-ageing tech or hormone therapy, the article emphasizes evidence-backed lifestyle changes that are accessible to the average person.

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The 9 Biggest Wellness Travel Trends of 2026

This is a trend-forecast roundup for wellness travel in 2026, arguing that after years of hyper-optimized biohacking the pendulum is swinging toward sociable, low-tech, sensory experiences—group saunas with aufguss performances, DJ-infused spa clubs, star-bathing and desert retreats, mah-jongg and gardening workshops instead of pure fitness. It also flags women's health (especially menopause) and multi-generational/family programming as major growth areas, citing specific properties like Canyon Ranch's new Women's Collective, Scorpios' hotel-nightclub hybrids, and Six Senses' family fitness offerings. Worth keeping as a scouting list of specific hotels, retreats, and destinations to consider booking or referencing for a wellness trip.

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