What Is Awa Bancha? A 1,000-Year-Old Fermented Japanese Tea Linked to Autophagy and Healthy Aging

Mar 22
4 min read

Updated: Apr 9

How Awa Bancha may support autophagy, metabolism, and long-term health

Your Body Has a Built-In Clean-Up Crew — and a 1,000-Year-Old Japanese Tea

Might Help Wake It Up

Scientists around the world are racing to help people stay healthy for longer.

One surprising clue? It’s been sitting in Japanese villages for over a thousand years.

Research & Insights · 6 min read

We all want the same thing

Whether you’re a busy mum chasing after toddlers, a student pulling late-night study sessions, or an athlete pushing your body to its limits — at some point, the same question crosses everyone’s mind:

How do I keep feeling this good, for as long as possible?

It’s not just a personal question anymore. Scientists, doctors, and researchers all over the world are now asking it too — and they’re competing hard to find the answer.

The global race to age better — with $101 million on the line

There’s a real-life competition happening right now called the XPRIZE Healthspan. Think of it like the Olympics — but instead of racing for gold medals, these teams are racing to find ways to add 10 or more healthy years to human life.

And the prize? A staggering $101 million USD. With 790 teams from around the world competing over 7 years, this is one of the largest and most ambitious health challenges ever launched. The goal is simple to say but incredibly hard to achieve: help people stay genuinely healthy — not just alive — for longer.

Source: XPRIZE Healthspan official competition page — xprize.org

Teams from the United States, Israel, Japan, Europe, Asia and beyond are all in the running. And here’s what’s fascinating: each team is taking a completely different approach.

Japan is taking the second path — and what they’ve found is genuinely surprising.

Your body already knows how to stay young

Here’s something most people don’t know: your body has its own built-in clean-up system. Scientists call it autophagy (say it like this: aw-TOF-uh-jee).

Every single day, your cells are doing something remarkable. They’re scanning for old, worn-out, or damaged parts — and recycling them, like a tiny internal clean-up crew. When this system works well, your cells stay fresh, energised, and healthy.

The problem? As we get older, this clean-up crew gets lazy. It doesn’t work as efficiently as it used to. And that’s one of the reasons we start to feel the effects of aging.

So the big question researchers are asking is: what helps keep that clean-up crew on the job?

Enter a very unusual tea

This is where things get really interesting.

Tucked away in Tokushima — a quiet, forested part of Japan — there’s a tea that almost nobody outside Japan has ever heard of. It’s called Awa Bancha (阿波晩茶), and it has been made and enjoyed there for over 1,000 years.

And now, for the first time, modern scientists are looking at this ancient tea through a microscope — and asking: what’s actually in it, and what does it do?

Old wisdom, new science

Early research is suggesting that natural compounds found in Awa Bancha may help support the body’s metabolism and the cellular processes linked to healthy aging — including, potentially, that clean-up crew we talked about.

This isn’t just interesting — it’s part of a much bigger shift happening in health science right now. For a long time, the assumption was that the best answers would come from the most advanced technology. But researchers are increasingly finding something different: that some of the most powerful clues were hiding in the everyday foods and habits of the world’s longest-living communities all along.

What this means for you

You don’t need to be a scientist to find this exciting.

Whether you’re trying to keep up with your kids without burning out, train harder and recover faster, stay sharp through exams, or simply feel your best as the years go by — the emerging science around cellular health is becoming harder to ignore.

The message coming out of this research is both simple and powerful: the choices we make every day — what we eat, what we drink, how we live — can support our cells in ways we’re only just beginning to understand.

As the XPRIZE competition continues — with 790 teams, a $101 million USD prize, and

7 years on the clock — new findings are expected from teams around the world. But one thing is already clear: the future of healthy aging won’t come from a single miracle pill or a single breakthrough moment.

It will come from understanding our bodies better — and perhaps from rediscovering what people in places like Tokushima have quietly known for generations.

Want to read the science behind this story? The full research report was published in npj Aging, a Nature journal: Read the paper →