This article was written by Ziggi Ivan Santini, Research Scientist in Mental Health at the University of Southern Denmark, David McDaid, Associate Professorial Research Fellow at the London School of Economics and Political Science, Sarah Stewart-Brown, Chair of Public Health at the University of Warwick and Vibeke Koushede, Head of the Department of Psychology at the University of Copenhagen. This article was first published by The Conversation (opens in a new tab). Read the original article here (opens in a new tab).


There are many reasons why mental wellbeing is important. Not only is it protective against physical illnesses (opens in a new tab) and linked to greater productivity (opens in a new tab), but the mental wellbeing of a population is essential for a country’s sustainability (opens in a new tab), long-term growth (opens in a new tab) and development (opens in a new tab).

But despite the clear benefits, governments tend to focus public spending on treating and preventing disease, and providing care for those who are ill. While this is important and should continue to be prioritised, such strategies alone won’t increase (opens in a new tab) levels of mental wellbeing overall.

Not only would enhancing mental wellbeing across all segments of the population (opens in a new tab) lead to better health (opens in a new tab) on average, it would also be beneficial from an economic perspective (opens in a new tab).

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In our latest study (opens in a new tab), we explored the link between mental wellbeing and government expenditure. We found that each increase in mental wellbeing in a population was associated with lower health and social care costs the following year. In other words, the greatest savings could be made (opens in a new tab) by maximising everyone’s mental wellbeing.

Mental health

Mental health may be considered an umbrella term (opens in a new tab) for a continuum – with mental illness (opens in a new tab) or disorder at one end and mental wellbeing at the other. Mental illness may describe various conditions – such as depression or anxiety – which affect emotion, thinking, and behaviour. Symptoms may include sadness, fatigue, feeling alone, or not being able to focus on important things. A common feature is that mental illness involves feeling bad and functioning poorly (opens in a new tab).

Mental wellbeing, on the other hand, is defined as feeling good and functioning well (opens in a new tab). Characteristics may include optimism, feeling energetic, relating well to others, or being able to think clearly. Importantly, mental wellbeing is more than the absence of mental illness (opens in a new tab). Not feeling depressed or fatigued does not mean that you will automatically feel optimistic or energetic.

Economic assessments have tended to focus on the costs of mental illness (opens in a new tab) – not the significant savings that mental wellbeing may generate. Yet, mental wellbeing is predictive of physical health and longevity (opens in a new tab) – for example better immune function (opens in a new tab), being more physically active (opens in a new tab), and faster recovery from physical illness (opens in a new tab) – including cardiovascular disease, heart attack, and stroke.

Mental wellbeing also implies resilience – the ability to cope (opens in a new tab) with the normal stresses of life. This is an important protective component (opens in a new tab) against various mental and physical health problems. Taking all these benefits into consideration, it’s not surprising that mental wellbeing will have implications for health and social care costs.

Mental wellbeing and expenditure

In our study (opens in a new tab), we assessed the mental wellbeing of 3,508 Danish participants in 2016 by using the Warwick-Edinburgh Mental Well-Being Scale (WEMWBS). This scale consists of 14 positively worded questions (asking about a person’s degree of optimism, feelings of confidence, whether they feel relaxed or interested in new things). This results in a score between 14 and 70 for each participant. The higher the score, the better the mental wellbeing.

By curbing expenditure through the promotion of mental wellbeing, savings could in due time be allocated to other areas within and beyond the healthcare sector where there is a need.

We then looked at two types of Danish government expenditure: healthcare expenditure per person (including money spent on general practitioners or specialists, hospitalisations, outpatient services, prescription medicines), and sickness benefit transfers per person (this is government-compensated sick leave from the workplace). We adjusted for expenditure from the previous year, alongside other relevant factors – including whether participants had a diagnosed mental disorder. We did this to make sure our results would not be inflated due to ongoing illness, or simply reflect the higher costs that are generally associated with mental illness.

We found that mental wellbeing in 2016 predicted both expenditure outcomes in 2017. Each point increase in mental wellbeing for each person was associated with US$43 (£31) less in healthcare costs, and US$23 (£17) less in sickness benefit transfers.

This may not sound like much. But let’s say the inhabitants of a town with a population of 50,000 were to each experience a single point increase in mental wellbeing. According to our estimates, the collective improvement in mental wellbeing would be associated with about $2m (£1.4m) less in healthcare costs, and about $1m (£700k) less in sickness benefit transfers over the following year for this town.

This example – albeit hypothetical – is consistent with other research showing that municipalities (opens in a new tab) or zip-codes (opens in a new tab) with higher levels of average wellbeing have significantly lower healthcare expenditure. Our results indicate that increasing levels of mental wellbeing would, even over a short period of time (i.e., one year), curb care costs (opens in a new tab) for physical as well as mental illness.

Enhancing mental wellbeing

But in order to improve mental wellbeing (opens in a new tab) for everyone, governments will need to intervene (opens in a new tab) and work with community organisations and municipalities (opens in a new tab) to create environments (opens in a new tab) or foster behaviour (opens in a new tab) that protects mental health and enhance wellbeing.

On an individual level, things such as self-care (opens in a new tab), mindfulness (opens in a new tab), as well as concentration and flow (opens in a new tab) (the state of being completely absorbed, focused and involved in something), are all effective ways of enhancing mental wellbeing.

Staying physically, mentally and socially active, maintaining close social ties, and getting involved in meaningful challenges or causes (such as charity or volunteer work) are all essential principles (opens in a new tab) for improving mental wellbeing.

Promoting mental wellbeing universally may not only help people on an individual level, but can lead to mental wellbeing spreading from person to person (opens in a new tab). This is very important, because ultimately the more people there are in a community with high levels of mental wellbeing, the more likely it is that those with mental health problems or other difficulties can be supported by those around them (opens in a new tab).

By curbing expenditure through the promotion of mental wellbeing, savings could in due time be allocated to other areas within and beyond the healthcare sector where there is a need. As we see it, investing in mental wellbeing should not be a question of “can we afford to?”, but infinitely more a question of “can we afford not to?”. — Ziggi Ivan Santini, David McDaid, Sarah Stewart-Brown & Vibeke Koushede

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