Somewhere around fifty I quietly decided this was just what my body did now.
Not out loud. Not as a decision, exactly. Knees, energy, bloods, the lot went into the same folder. I stopped asking why and started calling it my age.
If you’ve done the same thing, you’re in reasonable company. It’s the most sensible conclusion on offer. Everything you get told points that way.
Then two years of results landed that didn’t agree with me.
At fifty, nearly every marker on my NHS panel was heading the wrong way. At fifty-two they weren’t. Same tests, same surgery, same bloke, records going back to 2012s sat behind it.
One person’s data. But here’s what actually moved.
The Version of Ageing I’d Swallowed Whole
After fifty, things decline. That’s the deal. Blood sugar creeps up. Cholesterol creeps up. Kidneys get a bit tired. You slow down. And the job, from there, is management. Keep it steady, keep it slow. Nobody’s promising you’ll go backwards.
Type men’s health over 50 into a search bar and look at what comes back. Most of it is about managing the slope. Very little of it is about changing direction.
That guidance exists for good reason, by the way. Population averages genuinely do decline with age. Kidney function drops. Insulin sensitivity drops. If you’re a GP looking at ten thousand patients, that curve is real. It isn’t a myth. It’s an average.
I believed it because it fitted. Every year I felt slightly worse. Every set of bloods came back slightly worse. Cause established, case closed, filed under fifty.
Then I came across a researcher at Yale called Morgan Levine. Studies biological ageing. Her work suggests that health behaviours are the biggest single thing driving how fast you age biologically. Bigger than genetics. Bigger than stress.
Which, when I read it, I sort of didn’t quite believe.
But it stuck. Because if that’s right, the curve I’d accepted wasn’t a law. It was an average, and my inputs were sitting somewhere inside it.
Eight Years of Drift I Filed Under My Age
Start with the number I ignored the longest. HbA1c. Three-month average blood sugar.
September 2015. 38. Normal.
October 2016. 40. Borderline.
- 43.2. Pre-diabetic.
October 2022. 47. One point off a diabetes diagnosis.
December 2023. 46.
That’s eight years of drift. Roughly one point two percent worse every year, like clockwork. Medicated for most of it. Seeing my GP regularly. Following what I was told.
It wasn’t only that one, either.
Creatinine, which is a kidney marker. A hundred in 2012. A hundred and fifteen by 2016. That October my eGFR came back at 66. Stage 2 chronic kidney disease, in writing, on an NHS printout. Liver enzyme, ALT: thirty-seven in 2012, sixty-nine by 2023.
August 2020 was the floor. Bloods the worst they’d ever been. Pre-diabetic, uric acid up, four medications on the go, nothing improving. I remember reading that letter and thinking, well. That’s fifty coming, isn’t it.
Here’s the part I’d rather not admit. Across eleven years, not one of those markers moved in the right direction. Not one.
And in all that time I never asked whether the inputs were wrong. I asked whether the dose was right.
Which is a different question entirely.
This is where the garden thing lands for me. You can’t undo forty years of weeds overnight. That’s true, and anyone telling you otherwise is selling something. But you can start pulling weeds today. Year one still looks rough. Bare patches, stubborn roots, slow going. Year two, you don’t recognise it. The alternative is keeping the weeds, watching them strangle everything, then saying you’re too old to change the garden now.
The garden doesn’t care how old you are. It responds to inputs.
I’d spent eleven years arguing about the fertiliser and never once looked at the soil.
What I Changed, And What I Got Wrong Doing It
Boxing Day. The twenty-sixth of December, 2023. Fifty years old, eighteen stone, standing in front of a mirror I’d been avoiding.
Ten days, water only. That was the start. Then I ate properly again for a few weeks. Then in late January I did seventeen days, water only. That was the real kick-start.
After that it settled into something I could actually live with. Eighteen hours fasted, six-hour eating window. Real food, nothing out of a packet with a cartoon on it. Walking, mostly.
What I ended up doing gets filed under intermittent fasting for men over 50, which makes it sound a lot tidier than it was.
Now, the important bit, and I’m not going to dress this up.
I did not ask permission. I didn’t discuss any of it with my GP beforehand. I told him afterwards, once I had blood tests to put in front of him. That’s what happened, and I’m not recommending it. If you’re on medication, or you’ve got a condition, that conversation goes first. Not after. First.
Seventeen days without food is not a starting point. It isn’t a beginner’s move and it isn’t the bit that matters. The eighteen-six pattern and the food change are what carried the next two years.
The first fast was bloody hard, by the way. Days three and four I was cold, irritable, and fairly convinced I’d made a stupid decision.
Between Fifty and Fifty-Two: What the Numbers Actually Did
Then the results started coming back.
HbA1c. Forty-six in December 2023. January 2025: 40. April 2025: 37. Optimal. November 2025: 37 again, so it held.
That’s the lowest reading in a data going back to 2012set. Fourteen months to get there. Not six weeks. Fourteen months.
Creatinine went from ninety to seventy-eight inside a month, and was still eighty in January 2025. eGFR came up from that sixty-six to above 90, and it’s stayed there twenty months. Off the kidney monitoring list altogether.
Inflammation. CRP was six point two in January 2025. By April, 1.0. Eighty-four percent down in three months.
And this is the one that changed how I think about it. Between February 2024 and April 2025, eight separate markers improved at the same time. Blood sugar, inflammation, liver, kidney, lipid ratios, the lot. Across the previous twelve years, on medication, none of them had.
That doesn’t look like eight separate wins. It looks like one thing moving underneath.
April 2025 I sat with the result and read it twice. Lowest HbA1c in thirteen years, at fifty-two. Not at forty. At fifty-two.
My GP ran another full panel in December 2025. All markers optimal. He’s now genuinely interested in what the next set looks like, which is not how those appointments used to go.
And the honest bit.
Ferritin. Iron stores. January 2025 it was eighteen point four, already below the floor. By April it was 8.9. Seventy percent below minimum. That’s not a wobble. That’s an adverse event, and it’s logged as one.
It got flagged, it got investigated properly, and it got dealt with. But I want that on the record, because a post where everything improves is a post that’s leaving something out. Some things went the wrong way while the rest went right. That’s what actually happens.
The Early Signal
There’s a thing about garage mechanics I keep coming back to.
A good mechanic gets into a car and knows immediately that something is slightly off. The engine sounds a fraction different. The idle isn’t right. Something’s changing that hasn’t become a problem yet, but will. Most drivers only notice when the engine falls through the floor. Their attention was never trained to catch the earlier stuff.
Your body sends those signals constantly. The tiredness before the diagnosis. The digestion that’s slightly off before it’s anything you’d mention. The sleep that changed before you’d call it a problem.
That’s the early signal. And I’d spent years hearing mine and filing every one of them under my age.
What my data suggests, and it’s one person’s data, is this. Between fifty and fifty-two, on my own panel, the direction reversed. Not slowed. Reversed. What that says to me is that a decent chunk of what I’d labelled ageing was accumulation, and accumulation responds to inputs in a way that age doesn’t. I can’t tell you it would happen for you. I can tell you what happened on mine, across thirteen years of the same NHS tests.
Some decline genuinely is age. Not everything reverses, and my ferritin is proof that things can go backwards while other things go forwards. If you’ve got a cardiac history, a family history, or you’re on medication, this is a conversation to have with your GP, not instead of your GP. Testing an assumption isn’t the same as ignoring advice.
So that’s what the two sets of printouts showed me. Nothing was restricted, nothing was white-knuckled, and I didn’t need more discipline than I’d had at forty-eight. The inputs changed and the body responded, in its own time, at its own pace.
If you’re noticing changes and you’ve already filed them under your age, that’s the assumption worth testing. Before the medication conversation starts, rather than after it.
I’ll leave that with you.
🎯 Key Takeaways
- Direction reversed, it didn’t just slow: On my own NHS panel, HbA1c went 47 in 2022 to 37 in April 2025. lowest on record, at fifty-two.
- Eight markers moved together: Between February 2024 and April 2025, blood sugar, inflammation, liver, kidney and lipid ratios all improved at once. In the twelve years before that, on medication, none had.
- It took fourteen months, not six weeks: The timeline is the honest part. Judge month eighteen, not week six.
- Something went the wrong way too: Ferritin dropped to 8.9, seventy percent below minimum. Flagged, investigated, dealt with, and logged as an adverse event.
- I told my GP afterwards, not before: That’s what happened, and it isn’t the route I’d suggest. If you’re medicated, the GP conversation goes first.
Ready to Start Your Own Rhythm Reset?
Search health transformation over 50 and you’ll get a thousand plans and very few receipts. What carried most of the two years above was the eighteen-six pattern and the food change, and that’s written down properly in the 14-Day Rhythm Reset Guide. Eating windows, what to eat, how to build it without turning your life upside down.
👉 Get the 14-Day Rhythm Reset Guide (free)
💪 Want ongoing support? Join Rhythm Club for £30/month (includes FREE app access, community, and weekly accountability calls)
⚠️ Important: This is educational content based on evidence and personal experience. It is not medical advice. Speak to your GP before making changes to your fasting pattern, diet, or medication.
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