Why do some people seem to glide into their 60s looking sharp, energetic, and mentally quick, while others feel older than their years?
It’s not just luck. And it’s not just genetics.
Science is getting much better at answering this question. A recent study highlighted points to a powerful idea: we don’t all age at the same speed. And that speed, your “pace of aging,” might be one of the most important predictors of your future health.
Let’s unpack what that means.
Aging Isn’t Just About Birthdays
You already know this intuitively. Two people can both be 50. One runs marathons. The other struggles with stairs. Same chronological age. Very different biological age. Researchers now call this difference the “pace of aging.” It’s a way of measuring how quickly your body is actually declining over time, charted across multiple systems like your heart, brain, metabolism, and immune function. Think of it like this:
- Chronological age = how long you’ve been alive.
- Biological age = how worn your body actually is.
- Pace of aging = how fast that wear and tear is happening.
And here’s the key insight: that pace varies a lot between people.
So Why Do Some People Age Slower?
The study found that differences in aging speed aren’t random. They’re shaped by a mix of factors:
1. Your Early-Life Foundations
Surprisingly, aging doesn’t start in midlife. It starts much earlier than that due to things like:
- Nutrition in childhood.
- Prenatal health.
- Early environment.
All of these components can leave long-lasting biological “imprints.” Previous tools couldn’t separate these early-life effects from actual aging. But newer methods can, and they show both matters. So, in short, the body you build early on influences how fast it declines later.
2. Your Daily Habits (They Matter More Than You Think)
This is the big one. Your pace of aging is strongly shaped by what you do every day by things like:
- How you eat.
- How active you are.
- How well you sleep.
- Whether you smoke or drink excessively.
These factors don’t just affect how you feel, they influence measurable biological changes tied to aging. Even small interventions can help. For example, one study found that omega-3 supplements, especially when combined with vitamin D and strength training, can slow biological aging markers. This isn’t magic. But there are meaningful areas you can control.
3. Your Environment and Social Conditions
Where you live, and how you live, matters. The research highlights the role of:
- Socioeconomic status.
- Access to healthcare.
- Stress levels.
- Community and support systems.
These shape aging at a population level. Chronic stress, for example, isn’t just psychological. Research shows that chronic stress can accelerate physical decline. Trying to manage that stress is key.
4. Your Genes (Yes, But Not the Whole Story)
Genes still play a role. Scientists have identified hundreds of genes linked to faster or slower aging, influencing everything from inflammation to cell repair. But here’s the important nuance: Genes load the gun. Lifestyle pulls the trigger. You’re not powerless. Not even close.
5. Hidden Biological Changes You Can’t See
The study used real-world data like blood samples, physical tests, and cognitive assessments to track aging over time. What did they find? That people aging faster showed:
- Higher risk of chronic disease.
- Greater likelihood of disability.
- Increased cognitive decline.
- Higher mortality risk.
In other words: your pace of aging today predicts your health tomorrow.
Aging Isn’t Smooth, It Comes in Waves
Here’s something fascinating. Other research suggests aging may not be a slow, steady slide. Instead, it happens in bursts. Notably around your mid-40s and early 60s. During these periods, your body undergoes major molecular shifts affecting:
- Metabolism.
- Heart health.
- Muscle and skin.
- Immune function.
That might explain why some people suddenly “feel older” almost overnight. But again, those with a slower pace of aging tend to weather these transitions better.
Key Takeaways
Aging isn’t just about time passing, it’s about how your body responds to that time. And that response is shaped by a combination of:
- Early-life conditions.
- Daily habits.
- Environment.
- Genetics.
Put simply, some people age slower because their bodies accumulate damage more slowly and repair themselves more effectively.
What Can You Actually Do About It?
Here’s the encouraging part: you have more control than you think. You don’t need perfection. You need consistency. Start here:
1. Move your body (a lot)
Aim for a mix of cardio + strength. Even brisk walking counts.
2. Eat like your future depends on it (it does)
Focus on whole foods. Prioritise healthy fats (like omega-3s), protein, and fibre.
3. Build muscle
Strength training is one of the strongest anti-aging tools we have.
4. Sleep seriously
Poor sleep accelerates aging across multiple systems.
5. Try to manage stress
Chronic stress = chronic wear and tear. Try your best to manage stress through exercise, relaxation, and meditation.
6. Stay socially connected
Isolation is a hidden aging accelerator. Research shows that those with regular social outlets cope with stress better than those without.
7. Avoid the obvious traps
Try to avoid traps like smoking, excessive alcohol consumption and long-term inactivity.
Look around at your friends. Some seem to be aging in fast-forward. Others? Almost in slow motion. That difference isn’t random. It’s measurable. And increasingly, it’s modifiable. You can’t stop time. But you can absolutely influence how fast it shows up on your body.