Global study shows how fitter SA bodies could lead to a fitter SA economy

Drickus Maartens • November 6, 2019

Ground-breaking global study shows how fitter SA bodies could lead to a fitter SA economy with potential growth of $500 million (+R7 billion) a year

The results of a ground-breaking academic study on the relationship between global economic growth and exercise, carried out by Vitality and RAND Europe, reveal significant benefits to the economy and life expectancy if physical activity levels increase globally.

The study finds that the world’s GDP would gain more than USD$100bn (£80bn or R1,5trn) each year until 2050 if people:
  • walked 15 minutes more a day;
  • did a slow jog of half a mile (one kilometre) a day, or;
  • took 1 500 extra steps a day.
The economic improvement arises from lower mortality rates (more people alive and contributing to the economy), reduced absenteeism, and lower presenteeism driven by the impact of physical activity on mental health.

Dinesh Govender, Discovery Vitality Chief Executive, says; “Physical inactivity, and the devastating impact it has on people’s quality of life, mortality and morbidity, is one of the key public health challenges we face. Considering that 28% of the global population are not physically active enough – 38% in South Africa – Vitality’s commitment to get people moving is more relevant than ever.”

Vitality has been successfully incentivising people to lead fitter and healthier lives and ultimately transforming the way insurance works, for over 20 years. The insurers connected by Vitality, now collectively accountable for more than 35% of the world’s individual protection market, are committed to addressing significant global challenges like inactivity. This is evidenced by the network’s commitment last year to make 100 million people 20% more active by 2025.

In South Africa specifically, Vitality has over many years designed interventions that have a tangible impact on health outcomes. Govender said; “In 2015, we pioneered a step-change in how people tracked their physical activity and health with our Vitality Active Rewards with Apple Watch benefit. Vitality members bought over 231 000 fitness devices in 2019 alone.”

Independent research has validated the efficacy of incentives combined with a behaviour-change programme. “In 2018, we released the largest study on behaviour change and incentives with RAND Europe. This study showed that members with Vitality Active Rewards and Apple Watch were 34% more active – illustrating the power of incentives designed to achieve lasting behaviour change,” Govender explains.

Similarly, the 2019 study aims to further deepen the global understanding of the real economic impact of a physically inactive population. It assesses how different physical activity improvement scenarios may affect the economy of countries up to 2050 and shows the significant influence of regular exercise on economic growth, workforce productivity and life expectancy.

Govender continues: “This ground-breaking study provides proof of the relationship between exercise, productivity, mortality and economic growth. It strengthens our resolve to continue to encourage people to Move More and become part of a global health movement.”

Some of the findings show that:
  • If the physically inactive were to reach the World Health Organization’s recommended levels of exercise, employees would gain up to five additional days of productive time each year, and the global economy would grow by an estimated $220bn every year.
  • Life expectancy could increase by at least 2.5 years, on average, for a person aged 40 years in this scenario.
  • In addition to getting inactive people active, if those currently active increased their physical activity levels by 20%, the global economy could grow by in excess of $360bn every year; equivalent to the size of Singapore’s economy. Economic gains for the US economy would $95bn (£73bn) a year until 2050, and $11bn (£8.5bn) a year for the UK economy, in this scenario.
  • Economic gains can be attributed to the reduction of premature deaths in the working age population, improving rates of sick leave and improved levels of workplace productivity associated with regular exercise.
The study uses a novel approach to synthesise the existing evidence on physical activity and mortality risk by taking study design and publication bias into account. It utilises Vitality’s extensive proprietary dataset on workplace health, derived from its Healthiest Workplace initiative in seven countries, to assess the relationship between physical activity and performance at work. It combines the mortality and productivity effects into a single model to project the true economic cost of physical inactivity over time.

Hans Pung, President of RAND Europe, comments on the significance of the study; “This is the first time that a multi-country macroeconomic model has been applied to the area of physical activity, facilitating a detailed assessment of the current and future implications of insufficient physical activity.”

Pung also highlights the relevance for policymakers and employers, “The study points to a significant relationship between inactivity and productivity loss, driven largely by ill-health related presenteeism. We hope that these insights will support policy makers and employers with new perspectives on how to enhance the productivity of their populations.”

For South Africa, the positive knock-on effect on the economy of an increase in physical activity, is equally acute. The RAND study shows that if South Africa succeeds in getting 20% of adults more active over the next 30 years, the average GDP will increase by USD$500 million; and if all inactive people reach the minimum WHO physical activity levels, GDP will increase by between USD$1.6 and USD$2.1 billion.
August 1, 2025
“Mould exposure, particularly in poorly ventilated indoor environments, can lead to a variety of health symptoms — especially for individuals with underlying respiratory conditions, allergies, or weakened immune systems,” warns Dr Raisa Bhikoo, a pulmonologist and specialist physician.
Dr Letlhogonolo Sepeng, paediatric neonatologist
July 23, 2025
For many first-time mothers, the idea of weaning can feel overwhelming. paediatric neonatologist Dr Letlhogonolo Sepeng from Netcare Park Lane Hospital offers guidance to help navigate this transition.
Dr Wilhelm Lichteberg, Baby Kendreya and parents
July 8, 2025
Cardiothoracic surgeon and founder of the Young Hearts Africa Foundation, Dr Wilhelm Lichtenberg, has made it his life’s purpose to reach children with life-threatening heart defects like Baby Kendreya Pillay's before it is too late. Since its inception in 2023, the foundation has helped 30 children.
Men’s health warning: Prostate cancer usually has no early symptoms
June 26, 2025
Urologists Dr Hannes Brummer and Dr Johan Coetzee, who practise at Netcare Greenacres Hospital, are encouraging men to prioritise prostate cancer screening this Men’s Health Month.
HIV does not have to define your future
June 20, 2025
This Youth Month, a pharmacist from South Africa’s original national courier pharmacy highlights HIV prevention and effective management as key health concerns the youth should be aware of.
Healthcare professionals urged to recognise the risk of burnout and depression
June 13, 2025
It has been estimated that 80% to 90% of doctors experience some form of burnout at some point in their careers. This can affect their ability to practise optimally and to connect with their patients with empathy and care. The consequences are serious, as burnout and depression are major risks for doctors, threatening both their wellbeing and the quality of care they provide.
Cataract awareness
June 4, 2025
Upbeat 25-year-old student Atang Climantine Makhubedu jokingly calls herself a cataract survivor. Just weeks before, however, she was battling the harsh reality of unexpected vision loss, which Dr Sachin Bawa, an ophthalmic surgeon practising at Netcare Linkwood Hospital, describes as having significantly impacted Atang’s daily life.
First for SA: Electronically enabled algorithm supports better clinical decisions
May 30, 2025
A South African first of its kind tool is transforming patient care locally by leveraging Netcare’s advanced electronic medical records system and abundant clinical data. This will help clinicians identify risk of deterioration from common causes earlier among intensive care patients so that treatment can start sooner.
Ditshegofatso Kgobisa suffered kidney failure at 15 and his mother donated her kidney to him
May 12, 2025
Ditshegofatso Kgobisa, known as ‘DK’ for short, suffered kidney failure at 15. After 11 months reliant on lifesaving dialysis with National Renal Care, DK gained a new lease on life after his mother, Rosemary, was able to donate one of her kidneys to him.
More Posts