The Data brought me here

For thirty years, I’ve been passing through Shizuoka Prefecture, a long stretch of coastline with glorious views of Mt. Fuji.

I’ve crossed it countless times on the Tōmei Expressway without stopping, sped through on the Shinkansen, and even sailed its coastline on my first-ever long-distance solo sail.

And I’ve also cycled through it twice. Once with my dog and my friend, Professor Yoshi Masuda, and another time with two friends, Tony Torres and Mark Macbennet, as we rode from the mouth of the Tenryū River across Japan to Itoigawa, following the Walter Weston trail. And one time, my wife and I were hosted by the local authorities to experience their culinary treats.

But this journey was different.

This was the first time I traveled slowly through Shizuoka with data as my compass.

The data led me here because Shizuoka stands out for healthy life expectancy, and, more importantly for my research, for what I call the Red Zone: the period between healthy life expectancy and life expectancy.

Healthy life expectancy in Shizuoka is 73.75 years for men and 76.68 for women. When set against life expectancy, that leaves a Red Zone considerably shorter than the national average.

That’s what caught my attention. The official explanations are interesting. Shizuoka is Japan’s largest producer of green tea and among its biggest consumers. The prefecture has also spent years developing policies aimed at keeping older people active, healthy and engaged in work and community.

But national and even prefectural data aren’t granular enough to understand what I want.

The averages tell me where to look. I want to find the places hidden inside those averages, the villages, fishing communities and small towns where something unusual may be happening.

That’s where data, serendipity, and what I see and feel on the ground begin to work together.

One such place on this first reconnaissance was Kakegawa.

I’d planned to camp there for the night. After a slow drive down the coast, I turned inland and arrived just before dusk.

What would normally have been a quiet town was alive with a summer matsuri. Roads were closed. People filled the streets. Generations mixed together. The place had a feel about it. I wanted to stay.

Only afterward did I dig a little deeper and discover that Kakegawa itself has a long reputation for health and longevity, including community health initiatives and unusually good outcomes among its older population. Interesting. I don’t want to read too much into one evening at a matsuri. But it is enough to make me curious.

This first foray into understanding Shizuoka's healthspan wasn’t about finding answers. It was reconnaissance.

I didn’t arrive with interviews scheduled or questionnaires in hand. I watched the matsuri from a discreet distance. During the slow drive and camping through Shizuoka, I had brief encounters with farmers, fishermen, and early-morning walkers.

Observing. Listening. Getting a feel for the place.

And now I have a much clearer idea of where I want to return later this year, when the summer heat eases, and camping becomes a little more comfortable.

Kakegawa is on the list.

The data is still my compass. But the deeper I go into this research, the more interested I become in what the averages conceal. The numbers can point me towards a place.

Serendipity can make me stop.

Then I need to slow down long enough to discover what the people who live there might teach us.

This was reconnaissance.

I’ll be back.

Stay tuned. There is much more of Shizuoka, and its remarkably compressed Red Zone, I want to understand.

A note to readers: This article is part of my ongoing research into longevity, healthy aging and the Art of Community in Japan. I share selected articles here on the Never Too Late Academy website, while Defying the Red Zone on Substack is where I publish more regularly, including deeper research, data and sources, and Observations to Action exploring what these discoveries might mean for business, communities, policy and our own lives. Thanks for following the journey.

About the author: Lowell Sheppard is a writer, researcher, and explorer based in Japan. He is Founder and President of the Never Too Late Academy, a Fellow of the Royal Geographical Society, and Special Advisor to IAFOR. His current research explores longevity, healthy aging, and the role of community in compressing the Red Zone—the years between health span and lifespan. His forthcoming book is Longevity and the Art of Community: Lessons from Japan.