Longevity

What Is Healthspan, And Why Does It Matter?

The difference between lifespan and healthspan.

4 min read

Most of us would like to live a long life. Especually if those extra years meant more holidays, more dinners out, more time with the people we love, more energy to do the things we actually enjoy and, ideally, fewer years spent feeling like our bodies are constantly letting us down.

That’s where healthspan comes in.

Your lifespan is simply how long you live. Your healthspan is about how long you stay in good health and maintain the physical and mental abilities that allow you to live independently and enjoy your life.

The two don't always align perfectly. In fact, a 2024 study looking at data from 183 countries found that the average gap between lifespan and health-adjusted lifespan was around 9.6 years. So people are living longer, but those additional years aren't necessarily all years spent in good health.

This raises an interesting question: What if we focused just as much on how well we age as how long we live?

Healthspan Is About More Than Not Being Sick

When we hear “healthy aging,” it’s easy to picture avoiding illness or trying to look younger for as long as possible. But really, it’s about something much more useful: being able to keep living your life.

The World Health Organization describes healthy aging in terms of maintaining the functional abilities that allow us to live well as we age. In everyday terms, that means being able to move comfortably, stay independent, keep doing the things you enjoy and have the physical and mental capacity to participate in your own life.

That’s why the everyday stuff matters more than we might realize. Moving regularly, eating well, getting enough sleep, managing stress, staying connected with other people and looking after your brain might not feel particularly exciting on any given Tuesday, but these habits can add up over time. When you’re thinking about your health 10, 20, or 30 years from now, those small things start to look pretty important.

Muscle Matters More Than You Think

This is one of those areas that becomes increasingly important as we get older. Muscle isn't just about looking toned or getting stronger in the gym. It's what helps you move, balance, climb stairs, carry things, and stay independent.

That’s one reason strength training gets so much attention when we talk about healthy aging and longevity. Keeping muscle and strength as you age can help support the things you want to keep doing for as long as possible.

You don't need to suddenly become a gym person who loves lifting weights at 6AM. A couple of strength sessions a week, regular walking, and finding ways to move your body that you actually enjoy all play a part.

Your Brian Needs Energy Too

We usually think of creatine as the supplement people take before or after a workout, but creatine isn't just about muscles. Your brain has a high energy demand too, and the creatine-phosphocreatine system helps support the rapid production of cellular energy.

Researchers are now looking at what that could mean for brain health, cognition, and healthy aging.

A recent small pilot study involving people with Alzheimer’s disease found that eight weeks of creatine increased brain creatine levels by around 11%, along with improvements in some cognitive tests. A follow-up study also found signs that creatine may help support the brain’s energy supply.

Now, this was a very small study, with just 20 participants and no placebo group, so there’s a lot more research to do before we can draw conclusions about what this might mean long term. But it’s a pretty fascinating area of research.

Creatine has spent years sitting firmly in the “sports supplement” bucket. We’re now seeing researchers ask whether it could have a much wider role in areas such as brain health, healthy aging, muscle health, and longevity.

That’s exactly the kind of research we’ll be keeping an eye on.

So, How Do You Actually Support Your Lifespan?

This is where we can make the whole idea very simple. 

You don't need to overhaul your entire life tomorrow morning. Start with the basics. Move your body regularly. Look after your muscles. Eat a varied, nutrient-rich diet. Get enough sleep. Find ways to manage stress. Stay connected to people. Keep your brain engaged. Avoid smoking and excessive alcohol. Give your body the nutrients it needs.

Then keep doing those things - this part might actually be the most important.

There is no magic “healthspan routine” that guarantees you'll stay healthy forever. Genetics, environment, age and many other factors all play a role. What we can do is stack the odds in our favor by taking care of the things that are within our control.

Living longer is great, but being healthy enough to enjoy those extra years is what really matters.  And if we're lucky enough to get those extra years, wouldn't we want to feel good enough to enjoy them?

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