Personal Finance Financial Planning

Maximising your health span and wealth span for a better future

Bertie Nel|Published

Explore the critical distinction between lifespan and health span in South Africa, and discover how financial planning can help you navigate the challenges of aging while ensuring a fulfilling life.

Image: Freepik

South Africans are living longer, but not necessarily better, and that gap is becoming one of the most expensive risks. 

For decades, the conversation around aging has been dominated by a single metric: lifespan. We celebrated the fact that medical advancements and improved living conditions were adding years to our lives. But amidst the reality of modern longevity, a more critical question is the quality of those extra years.

In South Africa, where our socio-economic landscape adds unique layers of complexity to aging, the distinction between lifespan (the total number of years we live) and health span (the period of life spent in good health, free from chronic disease and disability) has never been more important.

While living longer is a milestone, living well is the goal.

The shift from lifespan to health span

Imagine two individuals who both live to the age of 90. The first spends their final 20 years managing multiple chronic illnesses, with limited mobility and high medical dependency. The second remains active, mentally sharp, and socially engaged until their final days. While their lifespans are identical, their health spans are worlds apart.

The gap between these two scenarios is often where financial and emotional strain resides. In South Africa, as weather events, economic shifts, and rising costs increase the pressure on households, the longevity risk – the danger of outliving your money or your health – is a growing reality.

Your DNA is not your destiny: The role of epigenetics

One of the most empowering shifts in modern science is epigenetics, the study of how your behaviour and environment can cause changes that affect the way your genes work. While our DNA provides the blueprint, epigenetics shows us that our lifestyle choices – what we eat, how we move, how we manage stress, and our environment – act as switches that can turn certain genes on or off.

This means your long-term wellbeing is not just a matter of luck or heritage. Every day, through preventative healthcare and mindful habits, you are actively influencing your future health outcomes. However, making these better choices often requires the one thing many people feel they lack: time and financial flexibility.

The financial reality of the long game

We need to be honest about the cost of a long life. While insurance and medical aids help absorb some of the financial impact of aging, the gap between what we need and have is widening for many. As healthcare costs continue to outpace inflation, living better also requires a more proactive financial strategy.

Longevity without financial preparedness creates strain rather than security. It isn’t just about having a pension anymore; it’s about sustaining an income that can support a potentially 30-year retirement, much of which may involve higher medical expenses.

Moving beyond the retirement age

The traditional, linear path – learn, work, retire – is becoming obsolete as we move toward a multi-stage life. This journey might include:

  • Career breaks and pivots as we step away from full-time work to study, travel, or care for family.
  • Non-linear work journeys by working part-time or consulting well into your 70s because you want to remain active, not just because you have to.
  • Preventative wellness as you invest in your health today to reduce the illness tax of tomorrow.

The financial adviser as a life architect

This is where the role of a financial adviser becomes crucial. Planning is no longer just about a single end date at age 60 or 65. Instead, both the adviser and the individual can play a proactive role in reducing risk by designing a plan that supports a full life journey.

Financial planning should be the engine that allows you to invest in preventative healthcare, take that necessary mid-career break without jeopardising your future, and maintain your quality of life as you age. Your adviser is there to ensure that your financial health span matches your physical health span.

Quantity of life is a blessing, but quality of life is a choice – one that requires intentionality. True longevity is about ensuring your extra years are financially, physically, and emotionally sustainable.

Living longer only matters if you can live well. By aligning our health choices with a flexible, proactive financial plan, we move beyond just surviving the years to start truly thriving through them.

* Nel is the head of financial planning and advice at Momentum.

PERSONAL FINANCE