Precision Health Insights
Simple, comprehensive diagnostic testing (metabolic rate, biological age, visceral fat) to show you exactly what is happening inside your body, taking the guesswork out of your health.

Longevity Health Check
30 minutes | Free
Normal ageing isn't normal
A strength-led health optimisation studio for adults over 40 — designed to help you build muscle, improve metabolic health and change the course of your future.
No obligation. Just clarity on your next best step.

Age 52
BioAge 43
9 years younger
As featured in












Some of what we accept as ‘normal’ ageing is actually preventable decline.


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Accepting Passive Decline
Building Proactive Resilience
At Longevity, we help you take control of your health through strength training, nutrition, sleep, metabolic health testing, coaching and measurable progress.
Strength is not just exercise. It’s the greatest investment in your health.
Muscle is metabolic currency. It is one of the most powerful interventions available for long-term health, balance, and vitality.
Combats fatigue, brain fog, pre-diabetes/diabetes, high blood pressure, excess weight and more…
Protects joints, reduces pain, and builds natural balance to prevent falls.
The physical foundation to keep travelling, playing with family, and living active lives.

Regular strength training helps you stay younger for longer.
We take the guesswork out of getting older using three tailored pillars:
Simple, comprehensive diagnostic testing (metabolic rate, biological age, visceral fat) to show you exactly what is happening inside your body, taking the guesswork out of your health.
Specialised equipment that automatically adapts resistance dynamically to your capability. It builds maximum strength safely with zero high-impact stress on your joints.
No wandering around wondering what to do or feeling out of place. Enjoy a clear, step-by-step routine in a supportive studio setting with our team on hand to help.

-12.7 yrs
How old your body behaves, not how old it is. Members turn back the clock by nearly five years on average.
After years of putting it off, I finally booked the trip to Italy I always dreamed about. I have the energy, strength, and confidence to enjoy every moment.
— Sarah M.
Member since 2024.

I can play with my grandkids, go for long hikes, and focus at work, without the afternoon crash. Life feels full again.
— James T.
Member since 2025.

Long-term health is rarely achieved alone.
Every Longevity membership includes access to a supportive community of:
Because consistency is easier when people are supporting you.
Windmill Hill Golf Centre, Tattenhoe Lane, Bletchley, Milton Keynes, MK3 7RB
Three science-backed plans. Choose the level of support that fits your goals.
£59.50/month
12 months for the price of 10
Guided workouts, core health tracking, quarterly progress reviews.
Explore Age Well£129/month
12 months for the price of 10
Unlimited guided sessions, comprehensive metabolic & body MOTs, weekly coaching.
Explore Age Strong£179/month
12 months for the price of 10
Full transformation package with complete diagnostic suites and dedicated 1:1 coaching.
Explore Age YoungerDetailed testing options (including BioTekna & PNOE) are tailored during your initial body check. Because your health journey is as unique as you are.
Questions? Let’s talk. Schedule a consultation
Rated 4.8 out of 5 on Google
Small, specialist health studio with a focus on helping clients build their strength and fitness to reduce their bio age . It's an incredibly friendly and welcoming environment where the coaches have time to spend with members, understand their goals and advise on the right mix of exercise to deliver them. The classes are small so you get great interaction with the coaches and the recently introduced education sessions have been interesting too. Highly recommended for those who want to age younger
— Clare, via Google
Best place ever to age younger! Great people working here and really good equipment. Can't recommend it highly enough. Join - you won't regret it!
— Julie, via Google
Joining Longevity was the best fitness decision I've made. After COVID, I struggled to start exercising and felt intimidated by traditional gyms. However, after discovering Longevity on Instagram, I decided to try the induction—expecting not to join. I was wrong. This gym is truly unique. Neil and the team offer exceptional support, and the bio age assessment was eye-opening. The tailored training plan and interactive machines keep me motivated, and the app helps track my progress. Longevity is perfect for anyone unsure of where to start their fitness journey. The atmosphere is welcoming, and you're never left to figure things out on your own. Highly recommended! 😊
— PD, via Google
If you want to improve your overall health, lose weight or just increase your strength and fitness levels I can highly recommend Longevity Gym at Windmill Hill. It has modern equipment which is tailored to your exact needs and is easy to use. There are fitness trainers there all the time to help you achieve your goals and answer any questions you may have. You get regular assessments to ensure you are progressing towards your goals and it has a very friendly environment. I particularly like going there as it is tailored more towards an older age group.
— Fiona, via Google
A small gym with knowledgeable trainers. The equipment gives you the complete workout. I especially like the fact that the programme changes every 6 sessions so that you continually progress. I also take part in the Bio Age assessments which help with understanding your body and keeping it young initially my bio age was older than I actually was but now I am 6 years younger after 12 weeks.
— Linda, via Google
Well equipped and friendly gym. Staff very knowledgeable and helpful.
— Mike, via Google
Small friendly place to work out. Doesn't take too long to work your way around the machines in the circuit. Plenty of free parking.
— Rebecca, via Google
Good facilities friendly and helpful staff
— Jan, via Google
Book your free 30-minute Health Check. We’ll measure your body composition, review your baseline health, and give you a clear roadmap to restore your strength.
Longevity Health Check
30 minutes | Free