The Million Hour Memo

Biological Age

By Dr Alka Patel, GMC-registered GP and longevity physician · 20 July 2025 · 5 min read

In short

What happens when you reveal someone’s real age on live TV? You get gasps, laughs—and a lot of curious viewers. Thank you so much to everyone who watched my debut this week on ITV’s This Morning!

What happens when you reveal someone’s real age on live TV? You get gasps, laughs—and a lot of curious viewers. Thank you so much to everyone who watched my debut this week on ITV’s This Morning! What a fun way it was to bring science into the spotlight. And how fascinating to see Cat and Ben’s reactions when they found out their actual age. Because here’s what more and more people are waking up to: It’s not about how old you feel. Or how young you look. It’s about how fast you’re actually ageing—on the inside. That’s your biological age—and once you know it, you can change it. Let’s dive into what it is, why it matters, and what you can do about it.

Data

Where insight becomes impact

What I’ve been looking at this week…

So what is biological age? It’s a measure of how well your body is actually functioning—not just ticking years on a calendar. It reflects your internal wear and tear: your stress, your recovery, your inflammation, your lifestyle choices—all bundled into one powerful number.

And unlike your birthday, biological age can go forwards or backwards. That changes everything.

Because here’s what we often don’t say out loud: When someone asks how old you are, what are you really hoping for? You're hoping they’ll say, “Oh wow—I thought you were younger!” Why? Because being younger means you still have more years ahead of you than behind you.

This isn’t about being anti-ageing. Time brings with it wisdom, depth, perspective. I love getting older.

But feeling older than you are—that’s what steals joy. 🚩 The aches. 🚩 The poor sleep. 🚩 The fatigue you can’t explain. 🚩 The frustration of doing “everything right” and still not feeling like yourself. Biological age matters because it’s not just about how long you’ll live—it’s about how well. And research has found that biological age is a stronger predictor of disease, disability, and death than chronological age. The older your biological age, the greater your risk of relentless disease—even if the date on your birth certificate is young.

It's your biological age that lets you see what’s working for you and what’s not. Is that intense workout helping or harming you? Are the veggies and smoothies actually making a difference? Are your habits ageing you faster than you think… or are you younger than you imagined?

And here’s the good news: You can test it. Track it. And change it.

So...how old are you, really?

Devices

Track it to hack it.

What I’ve been monitoring this week…

What do most people come to me for? 🧠 Sharper focus 💤 Better sleep 💪 More energy 🍰 Weight control 🩺 Reversing a diagnosis 🏃 Getting off medications 💡 Lifting the brain fog 🍴 Banishing bloating 🧬 Slowing ageing 👀 Looking younger 🧘‍♀️ Feeling younger Whatever brings you to me, we always start in the same place: With a biological age test. Because it gives us the clearest, most accurate starting point.

And the test I do is beautifully simple: 🩸 I send you a small device and kit for a finger-prick blood sample you do from the comfort of your home 📦 You send off the sample 📊 I personally interpret your results and design your plan It’s precise. It’s personal. And it’s predictive—of your future healthspan.

It’s simple, yet seriously insightful. I’ve used it with CEOs, athletes, busy parents, couples navigating stress, founders pushing their limits— Anyone who wants answers, not assumptions . What you get is: ✅ Your real biological age ✅ A full breakdown of how your lifestyle is really affecting your health ✅ A personalised doctor-led plan to move forward with intention When I say this test changes lives, I mean it. I've seen it. It’s not about scaring you. It’s about showing you how you can change the trajectory of life.

Decisions

From knowing to doing.

What this means for YOU…

After the show aired, I received hundreds of new followers and dozens of messages saying: “I need to do this.”

And so, to celebrate my This Morning debut—something I’m genuinely so thrilled about (and grateful for!) - I’ve made a decision to do something special.

I want to say thank you.

Thank you for watching. Thank you for your beautiful messages. And thank you for your curiosity—because that curiosity could change your health story forever.

💼 Case in point: One of my recent clients—a 42-year-old founder—came to me thinking she was ageing well— running regularly, eating ‘healthy’, sleeping 6 hours a night. Her biological age? +11 years older than her actual age. We didn’t panic. We got precise. We found the hidden culprits:

  • disrupted sleep patterns
  • glucose highs
  • hidden pre-diabetes
  • low-grade inflammation.

So we rebuilt: 🧘‍♀️ Restored her sleep 🥗 Calibrated her nutrition and meal timing 💖 Regulated her stress patterns 🚦 Reversed her pre-diabetes 10 weeks later? Her biological age dropped to 32! That’s more than a number. That’s longevity in action.

🕖 Click here to get your biological age test There's no point waiting for a health scare to tell you you’re ageing fast. Find out now—and start ageing younger.

It's a number you should know.

Diary

Where you’ll find me…

Last week: Loving the Green Room in the ITV studio with Cat & Ben!(my first time on the show!) And replying to every lovely DM that came through.

This week: Hosting a special bioage reveal for a VIP couple—let’s just say they’re turning back time, together.)

Next week: 🏃‍♀️ On a mission to help more people know their real age—and reverse it.

Distinction

A thought to pause on…

"Chronological age tells a story. Biological age writes it."

🎯 If you'd like to make decisions with precision based on your personal data and using devices that are specific for you, then you can also book a private consultation with me to get started.

Wishing you a vibrant, youthful week ahead! Dr Alka

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Where are you starting from?

The Longevity Quotient is free. It is a short set of questions, not a test, and it shows you where your habits may be shaping how you age.

Take the free LQ

This article is general education, not medical advice, and reading it does not create a doctor-patient relationship. If something has been going on for a while, please get it properly looked at by your own doctor.

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