Can We Influence How We Age?
Biological age and healthspan are two of the most useful ideas for understanding how we age. We cannot turn back calendar time, but we can improve strength, fitness and other measures of how well we function as we age. That is the practical promise behind the idea of biological age.
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What Does It Mean to Age Well?
People of the same age can function very differently. Some of that difference reflects genetics and circumstances we cannot choose. Some reflects the way our bodies respond to years of movement, food, sleep, stress and health conditions. This is the idea behind biological age: a way of describing the condition and function of the body, beyond the number of years lived.
Can we influence biological age and healthspan? In meaningful ways, yes. We can improve many measures of health and function. What science cannot yet promise is that a person can reliably make their entire body biologically younger by a precise number of years. I think the more useful goal is to build a body that serves you well for longer.
Calendar Age and Biological Age
Chronological age is simple: it counts the years since you were born. Biological age is an estimate based on selected measures of the body. Researchers use different methods, including clinical markers and patterns of DNA methylation, to study how people age and how aging relates to future health risks.
There is no single universal biological age score. Different tests measure different things and can give different estimates for the same person. A result that says you are "five years younger" is not a complete report card on your health, and one disappointing score is not a verdict on your future.
These tools are promising for research. Their use for guiding an individual person's choices is still developing. I would rather understand what has changed in your actual health and function than chase a flattering number from an aging clock.
How Biological Age and Healthspan Can Change Over Time
Aging involves changes throughout the body. Muscle strength, aerobic capacity, blood pressure, glucose regulation, sleep and mobility may all shift. They do not all change at the same pace, and they do not always move in one direction.
For example, someone may become stronger through resistance training even while growing older chronologically. A person who begins moving regularly may improve endurance and daily function. Dietary changes may support metabolic health. Those are real improvements, whether or not a biological age test reports a younger score.
That is why biological age and healthspan belong together in my thinking: healthspan is the years we spend able to participate in life with as much capacity and independence as possible. More years matter. What we can do with those years matters just as much.
Your Body Doesn't Work in Separate Compartments
Strength, aerobic fitness, sleep and metabolic health influence one another. When sleep is poor, training and recovery may feel different. Training, in turn, changes the demands we place on muscle and energy systems. A biological age estimate cannot capture every one of these relationships, so I look at the whole pattern.
What Can You Actually Do?
When it comes to biological age and healthspan, I start with the foundations because they affect so many parts of the body at once. Build or maintain muscle through strength training that fits your current ability. Include aerobic movement and work on balance and mobility. Eat enough nourishing food and protein for your needs. Give sleep and recovery a place in the plan. Pay attention to prolonged stress and how it changes your habits and energy.
The evidence for physical activity is particularly practical. Regular movement supports heart health, sleep and physical function. Muscle strengthening can help maintain or increase muscle mass and strength with age. None of this requires an exotic protocol. It requires an approach you can practice consistently and adjust as your body changes.
I also value useful measurements. Your strength, walking capacity, blood pressure and relevant laboratory trends can tell a story over time. A laboratory panel can offer helpful information, whether it comes through Function Health or another comparable source. The goal is to understand the information in context, alongside how you feel and function.
What About Reverse Aging Claims?
A headline may say that a diet, supplement, device or short program "reversed aging." Often, it means one measured marker changed during a study. That can be interesting. It does not prove that every organ became younger, that the benefit will last or that the same result will happen for everyone.
I am curious about new research, including biological clocks and emerging therapies. I am also careful about the gap between an intriguing result and a useful promise to you. Before buying into any claim about biological age and healthspan, ask what was measured, how long the study lasted and whether the change translated into better health or function.
A Better Question Than How Young Is My Score?
Ask yourself what you want your body to keep doing. Do you want to carry your own luggage, climb stairs comfortably, get on the floor and back up, travel, enjoy your sport or keep up with people you love? Those are goals we can work toward and revisit.
Choose a few measures that matter to your life. Notice your starting point. Make changes you can sustain, then review how your strength, endurance, sleep or metabolic markers respond. You may discover that your body is more adaptable than you assumed.
That is what "rewinding the clock" means to me today, and why I keep returning to biological age and healthspan. We cannot erase birthdays. We can challenge the assumption that each one must take away more of the life we want to live.
Beverly's Perspective
I do lift to look and feel like I’m still 25. I enjoy being strong, and I care about how my body looks. I’m 60, and I see no reason to pretend those goals no longer matter to me. Strength also lets me keep doing the things I love with confidence.
I’ve trained for decades, and my body still gives me reasons to pay attention, learn, and adjust. Age changes some things, but it does not decide what every birthday will take away. Whether you’ve lifted for years or are starting now, you can work with the body you have today and find out what it can build next.
Continue Learning
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Want to Understand Your Body at a Deeper Level?
Human Cell Regeneration Academy brings these concepts together in a structured learning experience. Explore how biological age and healthspan connect to nutrition, movement, metabolic health, recovery and stress, then use what you learn to make informed choices for your own body.
