Search for “secrets to stay young” and you’ll find endless lists of tips, techniques, and “surprising” tricks. Most sound plausible, few cite anything, and some rest on claims that don’t hold up when researchers look closely. This article goes through the most repeated ones: the Blue Zones story, telomere supplements, antioxidant pills, resveratrol, and the idea that long life is mostly in your genes.
It’s part of our complete, evidence-based guide to staying young, which covers the habits with the strongest research behind them. This piece covers the other side: what the old advice gets wrong, and why.
Why “secrets” is the wrong frame
The word “secret” implies something hidden that a few people know and everyone else has missed. The research on longevity doesn’t really work that way. The factors with the strongest evidence, like muscle strength, cardiorespiratory fitness, sleep, and social connection, aren’t secret at all. They’re well studied, widely published, and a bit boring.
The “secrets” framing tends to favor the opposite: single foods, single supplements, or faraway places with a special story. Those make good headlines. They also tend to have the weakest evidence. Below are five of the most common examples.
Myth 1: Blue Zones prove certain places hold the key to long life
Blue Zones are regions said to have unusually high numbers of people living to 100 and beyond. The usual list is Sardinia (Italy), Okinawa (Japan), Ikaria (Greece), Nicoya (Costa Rica), and Loma Linda (California). The idea became a bestselling book series, a Netflix documentary, and a wellness brand. It is now one of the most debated claims in longevity research.
The case against
Demographer Saul Justin Newman has argued that many extreme-age records are better explained by bad paperwork than by exceptional biology. In a widely discussed preprint on bioRxiv, he reported that in the US, the introduction of state birth certificates was associated with a 69–82% drop in supercentenarian records (people claimed to be 110+). He also argued that several Blue Zone regions had lower incomes, lower literacy, and shorter average life expectancy than their national averages. That’s an odd profile for a place full of unusually healthy people, but a common one for places with weak record-keeping. His work won the 2024 Ig Nobel Prize in Demography.
There’s real-world precedent for this kind of error. In 2010, Tokyo police found the mummified remains of Sogen Kato, who was listed as Tokyo’s oldest man. He had died decades earlier while his family kept collecting his pension. The nationwide check that followed found that officials couldn’t confirm whether more than 230,000 people listed as centenarians were actually alive.
The fading Nicoya advantage
A 2023 study in Demographic Research by Costa Rican demographer Luis Rosero-Bixby looked at a database of about 550,000 adult Costa Ricans. Men from Nicoya born in 1905 had 33% lower adult mortality than other Costa Ricans. Nicoyan men born in 1945 had 10% higher mortality. The advantage, the author concluded, is disappearing across generations, and hotspots of extreme longevity are “probably transient.”
The case for
The original researchers push back hard. In a 2025 paper in The Gerontologist, Steven Austad and Giovanni Mario Pes (one of the scientists who first identified the Sardinian zone) argue that the original Blue Zones meet strict age-validation standards. They say the research cross-checked civil birth and death records, church archives, family trees, military and electoral records, and interviews, and excluded cases that couldn’t be confirmed. They also argue that critics often overlook decades of methods built specifically to catch false age claims.
What to take from it
This is a live scientific dispute, not a settled question in either direction. But notice what it’s about: whether specific places are special. The habits associated with Blue Zones, like regular movement, mostly plant-based eating, and strong social ties, have their own independent evidence from large studies elsewhere. You don’t need Blue Zones to be real for those habits to be worth it. And you shouldn’t treat “they do it in a Blue Zone” as proof that any particular food or ritual extends life.
Myth 2: Supplements that lengthen your telomeres will slow aging
Telomeres are protective caps on the ends of chromosomes. They shorten as cells divide, and shorter telomeres are linked with older age. That makes them a tempting marketing target: if short telomeres mean aging, surely longer telomeres mean youth?
The best-known product is TA-65, a compound derived from the astragalus plant and sold as a “telomerase activator.” The main human study behind it, published in Rejuvenation Research, followed 114 people for a year and reported fewer short telomeres and some immune changes. It was an observational study of a commercial program, not a controlled trial, and the authors disclosed that they were employees of, consultants to, or funded by the company that sells TA-65.
There’s also a deeper problem with the premise. A 2017 study in JAMA Oncology by the Telomeres Mendelian Randomization Collaboration used genetic data to test what happens when people naturally have longer telomeres. Genetically longer telomeres were linked with higher risk for 9 of 22 cancer types studied. Longer is not simply better. Telomere length is a marker that reflects many processes, and pushing it in one direction with a supplement isn’t the same as turning back the clock.
Myth 3: Antioxidant supplements help you live longer
“Antioxidants fight aging” is one of the oldest claims in this genre. The theory sounded reasonable: oxidative damage contributes to aging, so blocking it should help. Then it was tested in large randomized trials.
A 2007 meta-analysis in JAMA by Goran Bjelakovic and colleagues pooled 68 randomized trials with 232,606 participants. Across all trials, antioxidant supplements had no significant effect on mortality. In the trials with the lowest risk of bias, the results were worse: beta-carotene, vitamin A, and vitamin E supplements were associated with higher mortality (about 7%, 16%, and 4% respectively). Vitamin C and selenium showed no significant effect either way.
The analysis has had critics, and the authors published corrections to some data. But the overall message has held up in later reviews: high-dose antioxidant pills don’t extend life, and some may cause harm. Antioxidant-rich foods are a different matter, since they come with fiber and many other compounds. Our article on anti-aging supplements covers which supplements have any real evidence behind them.
Myth 4: Resveratrol (and red wine) is a longevity secret
Resveratrol, a compound in red grapes, red wine, and chocolate, got huge attention after lab and animal studies suggested it might mimic some effects of calorie restriction. It became the scientific-sounding reason to believe a glass of red wine was an anti-aging habit.
A 2014 study in JAMA Internal Medicine by Richard Semba and colleagues tested this in real people. Using data from the Invecchiare in Chianti (“Aging in Chianti”) study of older adults in Italy, a wine-drinking region, they measured resveratrol breakdown products in urine. People with the highest levels lived no longer than those with the lowest. They were also just as likely to develop heart disease or cancer. The US National Institute on Aging summarized it plainly: dietary resveratrol didn’t affect health or longevity in this population.
Myth 5: How long you live is mostly down to your genes
This one works in the opposite direction: instead of promising a secret, it tells you there’s nothing to do. “My grandparents all lived to 95, so I’ll be fine,” or “Everyone in my family dies young, so why bother.”
A 2018 study in Genetics by Graham Ruby and colleagues, working with family-tree data from Ancestry covering hundreds of millions of people, put this to the test. Earlier estimates put the heritability of lifespan at roughly 15–30%. But the researchers found that spouses’ lifespans were correlated almost as strongly as those of blood relatives. People tend to marry partners with similar lifestyles and environments. After correcting for that, they estimated the true heritability of lifespan was well below 10%.
Genes still matter for specific diseases, and some families do carry real risk factors worth knowing about. But for most people, lifespan is shaped much more by habits and environment than by inheritance. That’s good news, because those are things you can change.
What the evidence does support
Take away the myths and the list gets shorter and more practical:
- Build and keep muscle strength. Grip strength, a proxy for overall muscle, is one of the more reliable predictors of mortality in large studies. See our deep dive on grip strength and muscle mass.
- Include vigorous effort, not just gentle movement. Cardiorespiratory fitness has some of the strongest dose-response data of any longevity factor. See our guide to VO2 max and exercise intensity.
- Protect your sleep, aiming for around seven hours with a regular schedule.
- Invest in relationships. Social connection’s link to survival is comparable to that of smoking in large meta-analyses.
- Eat mostly whole, plant-heavy foods rather than relying on supplements to do the job. Our list of anti-inflammatory foods is a practical starting point.
None of that is a secret. It’s just harder to sell than a pill or a travel story. If you’re looking into skin aging specifically, our anti-aging myths guide covers the skincare side separately.
Frequently Asked Questions
Are Blue Zones real or a myth?
It’s disputed. Critics, including demographer Saul Justin Newman, argue that many extreme-age records reflect poor record-keeping or pension fraud, and a 2023 study found Nicoya’s longevity advantage fading in people born after 1930. The original researchers defended their age-validation methods in a 2025 paper in The Gerontologist. The habits linked to Blue Zones, like regular movement, plant-heavy diets, and social ties, have independent research support either way.
Do telomere supplements like TA-65 work?
There’s no strong evidence that they slow aging. The main human study was observational and run by people connected to the company selling the product. A 2017 genetic study also found that naturally longer telomeres were linked to higher risk for several cancers, so “longer” isn’t simply better.
Do antioxidant supplements help you live longer?
Large randomized trials say no. A 2007 JAMA meta-analysis of 68 trials with over 232,000 people found no mortality benefit overall, and in the highest-quality trials, beta-carotene, vitamin A, and vitamin E supplements were linked to slightly higher mortality. Antioxidant-rich foods are a different story from high-dose pills.
How much of lifespan is genetic?
Less than most people think. A 2018 study of family trees covering hundreds of millions of people estimated the heritability of lifespan at well below 10% once the tendency of people to marry partners with similar lifestyles was accounted for. Habits and environment appear to matter far more for most people.
This article is for informational purposes only and is not medical advice. Talk to your doctor before starting or stopping any supplement, especially if you take other medications or have a health condition.
