Why Your Body Can Still Change at 40 – If the System Is Right
I was training hard. But my body wasn’t reflecting it.
That’s a pattern I see every week with adults who used to be fit, still train fairly well and feel like the body should be responding better than it is. They’re putting in effort. The return just isn’t there.
That was my situation eight weeks ago. I scanned myself on the InBody at Templetown. 12.6% body fat. Waist at 77.6 cm. I wasn’t in bad shape. But the numbers didn’t match how I was training.
So I tightened the system.
Same approach I use with clients.
Structured, not extreme.
And the data moved.
The Problem Was Not Effort
Most adults who feel stuck assume the issue is they’re not working hard enough. It almost never is.
The issue is usually that the effort is being applied to inputs that don’t match the body’s current needs. You’re doing enough to feel tired but not enough of the right things to get a return.
At 40, three things have changed since your twenties:
- Recovery capacity has dropped
- Protein requirements have gone up
- Stress load has multiplied
If the training doesn’t account for all three, the body plateaus regardless of how hard you work.
What I Actually Did
Four strength sessions a week. Not six. Structured, progressive loading with clear targets for each session.
Protein locked at 150 grams per day. Non-negotiable. This was the single biggest variable. Restructured meals around hitting the target — eggs for breakfast, chicken or fish at lunch, a shake after training. Simple swaps.
Slight calorie deficit. Not aggressive. Roughly 200 to 300 calories below maintenance. Enough to shift fat without tanking performance.
Two easy cardio sessions a week. Walking. Light cycling. Nothing that required recovery.
Sleep treated as a training variable. Seven to eight hours, tracked. Not perfectly executed every night but consistently prioritised.
I also competed at the TRYKA Open in April – finishing in 1:14:12. Not the goal of the block but a useful test of whether the system was building capacity.
I recorded a full episode breaking the whole block down – the training, the nutrition, the data and why most people plateau.
🎧 Episode 34:
What 8 Weeks of Proper Structure Actually Did to My Body at 40
Live NOW! Listen here:
The Results
After 8 weeks I scanned again.
Body fat mass: down 1.9 kg.
Skeletal muscle mass: up 0.6 kg.
Body fat percentage: 12.6% to 9.7%.
Waist: down 3.2 cm.
Visceral fat: level 2 to level 1.
I lost fat and built muscle at the same time. At 40.
And here’s the part that matters most. My body weight dropped 0.6 kg. Half a bag of sugar.
If I was only watching the scales, I would have thought nothing happened. The scales can’t see body recomposition. That’s why so many adults quit programmes that are actually working.
What The Scales Miss
Your body can lose fat and gain muscle simultaneously.
When that happens, weight barely moves but body composition changes significantly. This is body recomposition.
Most people think you can’t do both at once. The data showed otherwise.
Stop chasing weight loss alone.
Pay more attention to waist measurements, how your clothes fit, how you look, how you perform and how you recover.
These are all better markers of progress than a number that can’t tell you what actually changed.
What This Means At 40
Your body hasn’t stopped responding. The system just needs updating.
You probably don’t need a harder programme. You need a better-matched one.
More protein. Fewer junk sessions. Better recovery.
A structure that fits the life you’re actually living – the job, the kids, the stress, the broken sleep.
That’s fixable. And the data proves it works!
DM me REBUILD on Instagram for the application.
Paul Hughes – Templetown Strength & Conditioning, Carlingford