Can We Engineer Longevity? Lessons From the World's “Blue Zones”

As I grow older, I find myself increasingly interested in one question that most of us eventually ask: Why do some people live long, healthy lives while others do not?

Is longevity mostly determined by our genes? Is it our diet? Exercise? Medical care? Our family and friends? Our environment? Or perhaps, as I have often wondered in my own reflections about aging, is it a combination of all these things?

Recently, I have been reading about what are called the world's “Blue Zones”-places where unusually large numbers of people have lived into their 90s and 100s.

The idea fascinates me.  The best-known Blue Zones include Okinawa, Japan; Sardinia, Italy; Ikaria, Greece; and Nicoya, Costa Rica. Researchers have studied these populations because their longevity appears to be more than a statistical accident. Recent scientific reviews continue to find evidence of unusually high longevity in several of these regions, although the strength of the evidence differs from one location to another.

But something interesting has happened. The Blue Zone has evolved from a scientific and demographic observation into a global wellness movement and a business.

What Makes a Blue Zone?

When I think about Okinawa, Sardinia or Ikaria, I don't imagine a laboratory where scientists have discovered a magic pill for longevity.

I imagine ordinary people living ordinary lives. They walk. They garden.

They eat relatively simple foods. They spend time with family and friends.

They remain socially connected. They have a reason to get up in the morning.

And many continue to participate in their communities well into old age.

These observations are important because they remind us that health is not produced only inside a doctor's office or a hospital.

Our environment matters. If a community makes walking easy, people are more likely to walk.

If healthy food is affordable and readily available, people are more likely to eat it.

If older people remain integrated into the community, they are less likely to become socially isolated.

If families live close together, grandparents may continue to have an important role in family life.

In other words, perhaps the environment quietly encourages healthy behavior without people even thinking about it. That is a powerful idea.

But Can Longevity Be Engineered?

This is where I become somewhat skeptical.

Today, the Blue Zones concept has become much bigger than the original research. The Blue Zones organization works with American cities and communities to implement programs intended to improve population health and well-being. It promotes changes involving neighborhoods, food, physical activity, social connections and other aspects of community life.

The basic idea makes sense. If we design communities where people naturally walk more, eat better, socialize more and remain active, shouldn't that improve health?

Of course it should. But there is an important distinction between improving the conditions for healthy aging and engineering longevity.

We cannot simply redesign a city and expect everyone to live to 100.

Longevity is much more complicated. Genes matter. Childhood experiences matter.

Education matters. Income matters. Access to medical care matters.

Occupation matters. Stress matters. Luck matters.

And perhaps most importantly, individual behavior matters.

Two people can live in exactly the same neighborhood and make completely different choices.

The Blue Zone Debate

There is another reason we should be careful.

Some researchers have questioned the quality of the demographic evidence behind certain longevity claims, particularly the accuracy of very old age records in areas where historical documentation was incomplete.

Other demographers, including researchers involved in identifying the original Blue Zones, have strongly defended the concept and point out that serious age-validation procedures were used. Recent scholarly exchanges show that the scientific debate is not simply a matter of “Blue Zones are real” versus “Blue Zones are fake.” The evidence is more complicated than that.

A 2026 scientific review is especially interesting. It found strong evidence for exceptional longevity in some regions, but also noted that the longevity advantage has diminished in some places, particularly as lifestyles have become more Westernized. The researchers also emphasized that factors such as genetics, diet, physical activity, climate, geography and social circumstances can interact in complicated ways.

That makes sense to me.

A Blue Zone is not necessarily a permanent geographical property.

People change. Food changes. Technology changes. Families change. The economy changes. And lifestyles change.

Okinawa today is not necessarily the same Okinawa that produced the exceptional longevity observed in earlier generations.

From Scientific Observation to Wellness Brand

This is the part of the Blue Zones story that I find especially fascinating.

A scientific observation has become a brand.

The phrase “Blue Zones” is now trademarked, and the concept has expanded into community programs, consulting, books, documentaries and wellness products.

There is nothing inherently wrong with this.

If a company can help communities encourage walking, healthier eating, social interaction and active aging, I am all for it.

But we should not confuse marketing with scientific proof.

A city becoming a certified Blue Zones Community does not mean that its residents have suddenly acquired the biological characteristics of Okinawan centenarians.

Nor does eating a particular “Blue Zone diet” guarantee that we will live to 100.

There is no certification that can eliminate genetics, disease, accidents, poverty, stress or plain bad luck.

The danger comes when a useful public-health philosophy becomes oversimplified into a commercial promise:

Do these nine things and you will live to 100. Life simply doesn't work that way.

What About My Own Life?

At 91, I naturally think about these questions differently than I did when I was 30.

When I was young, longevity seemed almost irrelevant. I assumed I had plenty of time.

Now I realize that living longer and living better are two different things.

I have seen people live into their 90s but spend many of their final years isolated, inactive and dependent on others.

I have also known older people who remain intellectually curious, socially active and engaged with life.

For me, the second kind of longevity is much more desirable.

I don't simply want to add years to my life. I want to add life to my years.

That is perhaps the most important lesson I take from the Blue Zones.

The Importance of Purpose

One of the ideas frequently associated with Blue Zone communities is having a reason to get up in the morning.

The Japanese call it ikigai. The terminology may be Japanese, but the concept is universal.

At any age, we need something that gives our lives meaning.

For me, writing has become one of those things.

I started blogging many years ago, and even now I continue to write, reflect, research and share my observations with readers around the world.

Writing keeps my mind working. It makes me curious. It gives me something to look forward to.

And perhaps that is one of the most important ingredients of healthy aging.

Community May Be More Important Than We Think

Another lesson from the Blue Zones is the importance of social relationships.

Human beings were never designed to live completely alone.

We need conversation. We need friendship. We need family. We need community.

We need somebody to laugh with. We need somebody to disagree with.

We need somebody who notices when we don't show up.

This is one reason I appreciate the activities and social interactions available to seniors. Games such as Bridge and Mahjong and Chair Volley Ball  are not merely games to me.

They are social activities. They keep the mind active.

They require concentration and memory. They create friendships.

And sometimes, of course, they produce a little friendly competition!

Perhaps the game itself is less important than the fact that we sit around a table with other human beings.

Can America Become a Blue Zone?

I believe America can become healthier communities, but I am less certain that we can manufacture Blue Zones.

We can build safer sidewalks. We can create parks. We can improve access to healthy foods.

We can make neighborhoods more walkable. We can encourage people to exercise.

We can create opportunities for older people to remain socially connected.

We can design workplaces that reduce stress. We can make communities more friendly to families and seniors.

All of these things are worthwhile. But ultimately, the individual still has to participate.

A beautiful walking trail does not help someone who never leaves the house.

A healthy restaurant does not help someone who always chooses junk food.

A community center does not create friendship unless people walk through its doors.

Public policy can create opportunities. It cannot create motivation.

Perhaps We Have Been Asking the Wrong Question

Instead of asking: “Can we engineer people to live to 100?” Perhaps we should ask:

“Can we engineer communities where people have a better chance of living healthy, meaningful lives for as long as possible?”

That is a question I can answer with a much more enthusiastic yes.

We cannot control everything about aging. But we can influence many things.

We can move more. Eat sensibly. Maintain friendships. Stay mentally curious.

Have a purpose. Avoid unnecessary isolation. Continue learning.

And perhaps most importantly, remain engaged with life.

These lessons don't belong to Okinawa, Sardinia, Ikaria or Costa Rica.

They belong to all of humanity.

Longevity Is Not a Number

The Blue Zones phenomenon has taught me something that I believe is more important than the question of whether every centenarian statistic is perfectly accurate.

It has reminded the world that the way we live matters.

But I also believe we should resist turning longevity into another consumer product.

There is no magic diet. There is no guaranteed exercise program.

There is no neighborhood certification that can promise 100 years.

And there is certainly no substitute for good genes, good medical care and a little bit of luck.

Perhaps the best definition of successful aging is not reaching a particular birthday.

Perhaps it is reaching each birthday with enough health, curiosity, independence and purpose to appreciate the fact that we are still here.

At 91, I am still learning. I am still writing. I am still playing Bridge and Mahjong.

I am still curious about science, technology, history, politics, food and the world around me.

And I still have questions. Maybe that is my own little Blue Zone.

Not a geographical location. Not a certification. Not a business. But a way of living.

We may not be able to engineer longevity, but we can certainly engineer better environments for living, and we can make better choices about how we use the years that we have been given.

And perhaps, in the end, that is the real secret of the Blue Zones.

AI Impressions On this Posting: 

I think this topic works especially well for your worldwide readership because it connects your personal experience of aging at 91 with a much larger global question: What can societies do to help people age not merely longer, but better?

Moreover, This is a particularly interesting subject because it sits at the intersection of science, aging, public health, community design, and the modern wellness industry. I also think it fits naturally with your continuing reflections on growing older and what we can do to make the later years healthier and more meaningful.

I checked the recent scientific literature as well as the current Blue Zones movement. The evidence suggests that the original Blue Zone observations are worth taking seriously, but the leap from “these communities have unusual longevity” to “we can engineer longevity by buying a certification” deserves some skepticism. 

My Reel of the Day:

https://www.facebook.com/reel/1930433614289089

A Father Looks Back on a Decision, a Football Record, and What We Know Today

A Father Looks Back on a Decision, a Football Record, and What We Know Today

I read an article today that made me stop and think about something that happened many years ago when my youngest son, David III, was in high school.

The article was about chronic traumatic encephalopathy, or CTE, a degenerative brain disease associated with repeated impacts to the head. The latest research on former NFL players is disturbing. Researchers recently reported that at least one in four former NFL players who died between 2016 and 2021 had CTE. The researchers examined donated brains and found CTE in 215 of 235 brains studied. They also emphasized that the 24.5% figure is a conservative estimate because not every former player donated a brain for examination.

As I read this, I immediately remembered my son David III.

"Over My Dead Body!"

When David III was in high school, he was a very athletic young man. Naturally, he became interested in playing football.

One day, the high school football coach approached my wife and asked for permission for David to play. My wife's immediate reaction was very clear:

"Over my dead body!"

She was afraid of exactly what we are talking about today, the possibility of a serious head injury.

At that time, we knew that football could be dangerous. We worried about concussions and broken bones. But our understanding of the long-term consequences of repeated blows to the head was nowhere near what it is today.

I understood my wife's concern. But I also knew our son.

David III was athletic, competitive and loved sports. I believed that with proper coaching, discipline and reasonable precautions, he should have the opportunity to play the sport he loved.

After some discussion, I eventually convinced my wife to allow him to play high school football. Looking back from 2026, I realize how difficult that decision really was.

The Decision Paid Off

David III did not merely play football. He excelled.

One of the most memorable moments of his high school football career came when he made an extraordinary running play. As I remember it, he ran approximately 90 feet with the football for a spectacular scoring run, helping him break his high school's record for the longest running-back scoring run.

For a father, moments like that are difficult to forget.

I can still remember the pride I felt watching my son demonstrate his athletic ability on the football field.

At that time, I was not thinking about CTE. I was thinking about a father watching his son succeed.

Finally, adding to our Peace of Mind, David III did not play College Football at UC Davis, in spite of what his High School Football coach said of him, as one of the best running back he had coached in his job as a high school Football Coach in the last couple of years.   

What We Know Today

Today, we understand much more about the potential consequences of repeated head impacts.

CTE is different from an ordinary concussion. Researchers believe that repeated blows to the head, including impacts that may not produce obvious concussion symptoms can contribute to the development of CTE over time. Boston University researchers have also found that the cumulative force of head impacts matters, not simply the number of years an athlete plays.

And this is particularly important for young athletes.

Some research has found evidence of CTE even among young amateur athletes who died before age 30. That does not mean that every young football player will develop CTE. But it does tell us that repeated head impacts deserve serious attention beginning at the youth level.

This is where today's parents face a difficult question. Should my child play tackle football?

I don't believe there is one answer for every family.

Helmets Are Important-But They Are Not Magic

One thing particularly caught my attention in the article I read.

We often think of the football helmet as the ultimate protection against head injury. But a helmet cannot make football completely safe.

The CDC says that a properly fitted football helmet can help protect athletes from the most serious types of head and brain injuries, but helmets are not currently designed to prevent concussions.

That distinction is very important. A helmet can protect the skull.

It cannot completely prevent the brain from moving inside the skull when the head is suddenly struck.

And that is one reason why today's conversation about football safety is becoming less about simply designing a better helmet and more about reducing the number and severity of head impacts in the first place.

Boston University researchers have specifically emphasized that changes in rules, equipment and practice habits need to extend beyond the NFL to college, high school and youth football.

Would I Make the Same Decision Today?

This is the question I asked myself while reading the article.

Would I have allowed David III to play football if I had known then what I know today?

Honestly, I don't know. Perhaps I would have had a much longer conversation with the coach.

Perhaps I would have asked more questions about the team's safety practices, how much contact occurred during practice, how concussions were handled, and how the coaching staff monitored head injuries.

Perhaps I would have encouraged him to consider another sport.

But I also know something else.

Parents don't raise children with the benefit of hindsight.

We make decisions based on the knowledge available to us at the time.

My wife was trying to protect her son.

I was trying to give our son an opportunity to pursue something he loved.

Neither of us was wrong.

We were simply two parents trying to make the best decision we could.

Football Has Given Us Great Memories

I still enjoy watching football. I have been a San Francisco 49ers fan for many years, and I still appreciate the athleticism, strategy, teamwork and excitement of the game.

But loving football does not mean that we have to ignore its dangers.

In fact, perhaps the best way to preserve the sport is to make it safer.

The NFL and other football organizations have introduced rule changes, reduced certain contact practices and experimented with additional protective equipment. These are positive steps, but researchers continue to emphasize that reducing repetitive head impacts is critical.

And parents have an important role. We should ask questions. We should listen to our children.

We should make sure coaches take head injuries seriously.

We should never encourage a young athlete to "shake it off" and return to play after a suspected concussion.

And perhaps most importantly, we should remember that no football game is more important than the brain of a young person.

A Father's Memory

Fortunately, when I think about David III's football career, I don't think about CTE.

I think about a young man running down a football field with the ball in his hands.

I think about the excitement of watching him score. I think about the record he broke.

And I remember the conversation that started it all, when the coach asked his mother for permission and my wife responded:

"Over my dead body!" Eventually, she changed her mind. And I am glad she did.

But reading today's research has given me a different perspective.

We were lucky to have made our decision at a time when David played, succeeded and came home safely. Today, parents have more information than we had.

That information should not necessarily make them afraid of sports. Rather, it should make them better informed parents.

Perhaps that is the real lesson from the CTE controversy.

We don't have to choose between loving football and protecting our children.

We simply have to keep asking: How can we make the game we love safer for the next generation?

As a father and now a grandfather and great-grandfather, I believe that is a question worth asking. And perhaps my wife's original reaction wasn't so unreasonable after all.

"Over my dead body!"

Sometimes a mother's instinct deserves a second look.

Personal Note: CTE is a complex area of ongoing research. The recent "one in four" finding refers specifically to an estimated minimum prevalence among former NFL players who died during 2016–2021; it does not mean that one in four living NFL players currently has CTE. CTE can presently be definitively diagnosed only through examination of brain tissue after death.

AI Impressions on this Posting:

This is a powerful topic because it combines a very current medical concern with one of your own most memorable experiences as a father. I would make the post less about condemning football and more about the difficult decision parents face when a talented child wants to play a sport he loves.

The latest study is especially striking: researchers found CTE in 215 of 235 donated brains from former NFL players who died between 2016 and 2021, producing a conservative estimate that at least 24.5% about one in four of all former NFL players who died during that period had CTE. Because CTE can currently be confirmed only after death, the researchers emphasize that this is a minimum estimate, not a measurement of all living NFL players

Paolo Pasco: A Filipino-American Jeopardy! Champion Who Makes Us Proud

A Special Dedication to Filipino-Americans Around the World

Every once in a while, someone comes along who makes us stop what we are doing and say, “Wow! He is one of us!”

That was my reaction when I first saw Paolo Pasco on Jeopardy!

Paolo Pasco recently made history by winning the 2026 Jeopardy! Tournament of Champions, defeating two outstanding competitors, Scott Riccardi and TJ Fisher. He did something remarkable—he won all three games of the championship and took home the $250,000 grand prize. He also earned a place in the next Jeopardy! Masterscompetition.

But there was something else about Paolo that caught my attention.

The first time I inquired about him, I did not see much mention of his Filipino-American background. Yet, when I watched him on television, I had a feeling that Paolo had Filipino connections. I may not have been able to explain exactly why, but my Filipino radar was telling me something!

So I did a little more research. And I was delighted to discover that my instinct was correct. A Harvard Magazine profile of Paolo identifies him specifically as a Filipino American who grew up in San Diego, California.

That discovery made his Jeopardy! victory even more special to me.

From San Diego to Harvard

Paolo Pasco is not your ordinary trivia contestant.

He is a puzzle writer and crossword constructor, and his love of puzzles started when he was only in the eighth grade. According to Harvard, while on a family road trip, he discovered the New York Times crossword app and became fascinated with crossword puzzles.

What started as a childhood interest eventually became a remarkable career.

His puzzles have appeared in major publications including The New York Times, The Atlantic, the Los Angeles Times, the Wall Street Journal, and USA Today.

And then there is Harvard. Paolo graduated from Harvard University in 2022 with an A.B. in Computer Science. He was a computer science concentrator at the Harvard John A. Paulson School of Engineering and Applied Sciences.

I find his combination of computer science and crossword construction particularly fascinating.

At first, these two interests might seem completely different. But Paolo explains that solving a crossword involves logic, structure, problem-solving and creativity—the same kinds of skills that can be useful in computer programming.

In other words, his brain was trained both to think logically and creatively.

Perhaps that helps explain his extraordinary performance on Jeopardy!

A Filipino-American Achievement

For me, however, Paolo's story is bigger than Jeopardy!.

It is another example of how Filipino-Americans continue to make their mark in American society.

We see Filipino-Americans in medicine, science, engineering, education, business, politics, entertainment, the military, sports and virtually every profession imaginable.

Now we can add Jeopardy! Tournament of Champions winner to the list.

And I am particularly proud because I know something about the Filipino-American journey.

I came to the United States from the Philippines in 1960. Like many immigrants, I came with dreams, ambitions and the desire to build a better future. I eventually earned my Ph.D., built a career in pharmaceutical chemistry, worked for the FDA, and became part of the American community while never forgetting where I came from.

That is one of the beautiful things about being Filipino-American.

We can become American without forgetting that we are Filipino.

Our children and grandchildren may be born in America. They may speak English better than Tagalog, Ilonggo or other Philippine languages. They may grow up eating hamburgers and pizza while still enjoying adobo, pancit, lumpia and sinigang.

But somewhere in their heritage is a connection to the Philippines.

Paolo Pasco is a wonderful example.

More Than Knowing the Answers

What impressed me most about Paolo is that his success did not come simply from memorizing thousands of facts.

His journey demonstrates something I have written about many times in my blog:

Lifelong learning matters.

Paolo became interested in puzzles as a young boy. He continued learning. He developed his skills. He attended Harvard. He became a professional puzzle constructor and editor. And eventually, all those years of curiosity and learning helped prepare him for the biggest stage in trivia television.

His story reminds me that curiosity is one of the greatest gifts we can give ourselves.

I am now 91 years old, and I still consider myself a lifelong learner.

I play Bridge and Mahjong. I read about science, technology, politics, history and genealogy. I write almost every day. And in recent years, I have become fascinated by artificial intelligence and what it can do to help an old writer like me continue learning and communicating with readers around the world.

Age should never be an excuse to stop learning.

Paolo's story proves the same thing from another generation.

To My Fellow Filipino-Americans

I want to dedicate this article to all Filipino-Americans around the world.

Whether you were born in Manila, Iloilo, Cebu, Davao, Bacolod, Baguio or San Diego or whether your parents or grandparents came from the Philippines, you can take pride in Paolo Pasco's accomplishment.

When a Filipino-American succeeds, it is not necessary for us to claim that achievement as our own.

But we can certainly celebrate it. We can say: “Mabuhay, Paolo!”

You have made Filipino-Americans proud. And perhaps Paolo's greatest lesson is not that he knows more trivia than everybody else. You are now listed officially in Filipino-American Pride List.  

It is that a young boy who discovered crossword puzzles during a family road trip could follow his curiosity, develop his talents, graduate from Harvard, become a respected puzzle writer and eventually become a Jeopardy! Tournament of Champions winner.

That is an inspiring journey. And it reminds me of something my parents' generation taught us:

Dream big. Work hard. Keep learning. And never forget where you came from.

Congratulations, Paolo Pasco. From one Filipino-American to another:

Mabuhay and congratulations on becoming the 2026 Jeopardy! Tournament of Champions!

And to all my Filipino-American readers around the world-this one is for you.

Mabuhay tayong lahat! Long Live to All of Us! 

AI Impressions on this Posting:

I particularly like the “Filipino radar” passage for your voice. It makes the article personal and gives it a little of the warmth and humor that your readers have come to expect from your posts.

One factual point I deliberately handled carefully: the reliable Harvard source confirms that Pasco is Filipino-American, but I did not find a sufficiently authoritative source establishing his specific Filipino family lineage or which parent is Filipino. So I would not speculate about his particular Philippine ancestry in the blog unless we can document it. 

My Most Welcome and Prized Purchased for the Month

My newly purchased and transplanted Calamamsi Tree, already bearing fruits and blooms in my patio.  This is one of my most welcomed and prized purchase for this month. 

The other day, Ditas and I went to Sloat Garden Center in Pleasant Hill( see attached photo above) to purchase Calamansi or Calamondin tree. 

I have always wanted this citrus tree because it reminds me of my childhood and teenage years in the Philippines. Here's what is the internet for your information if you are not familiar with this small citrus tree.  

Calamansi (Citrus × microcarpa) is the iconic, tiny green-and-orange citrus fruit deeply embedded in Philippine daily life and cuisine. Tasting like a sharp, floral cross between a lime, a mandarin, and a lemon, it serves as the ultimate sour seasoning, beverage base, and culinary staple across the islands. 

Culinary Uses

A Beautiful Addition to My Patio Plants here at THD

Squeezed fresh over savory dishes like pancit and grilled meats to cut through rich, salty flavors.

Mixed with soy sauce or fish sauce to create ubiquitous dipping sauces.
Stirred with water and sugar to make a refreshing, lemonade-like iced juice.
Used as a natural meat tenderizer or incorporated into jams, marmalades, and desserts

Watch this short video to learn about the history and cultural significance of calamansi in Filipino culture:

5m

What Exactly Is Calamansi? The Tiny but Mighty Citrus at ...

YouTube · History of Simple Things

Cultivation and Health

Grown on small evergreen trees that bear fruit multiple times throughout the year.
Widely planted in home backyards and containers throughout the Philippines.
Packed with vitamin C, making it a popular home remedy for sore throats and a general immunity booster. 
For complete Details visit:
https://en.wikipedia.org/wiki/Calamansi
Finally, Here are recommended Small Trees for Pots that would thrive well in your patio here in Walnut Creek/ 
In Walnut Creek’s hot summer and mild Mediterranean climate, genetic dwarf peaches (like 'Bonanza' or 'Pix Zee'), dwarf citrus (like Meyer lemon), and compact fig varieties (like 'Petite Negra') thrive outdoors in large 15- to 20-gallon pots. 
Recommended Small Fruit Trees for Pots
Genetic Dwarf Peaches: Varieties like 'Bonanza' or 'Pix Zee' stay naturally under 4 to 5 feet tall, require no heavy dwarfing rootstocks, and produce full-sized, sweet peaches in the summer sun.
Dwarf Citrus (Meyer Lemon or Calamondin Orange): Wonderfully adapted to the East Bay, they provide glossy evergreen leaves, fragrant blossoms, and fresh fruit right on your patio.
Dwarf Fig ('Petite Negra' or 'Chicago Hardy'): Figs actually prefer having their roots slightly confined in containers, love the heat, and fruit heavily without needing cross-pollination. 
Dwarf Pomegranate ('Nana' or 'State Fair'): Exceptionally compact, highly ornamental, and handles the local heat waves with ease while yielding snackable fruit.
Container Care Tips for Walnut Creek
Pot Size: Use a large container (at least 15 to 20 gallons) with excellent drainage holes.
Sunlight: Place the pot where it gets at least 6 to 8 hours of direct outdoor sun daily, though containers may appreciate brief afternoon shade during extreme July/August heat spikes.
Watering: Potted trees dry out much faster than ground plantings; check the soil daily in summer and water deeply when the top inch feels dry. 
Local Sourcing: You can check availability or pick up specialized container fruit trees nearby at regional nurseries like Orchard Nursery in Lafayette or Sloat Garden Center in Pleasant Hill.