In July 2024, I had the pleasure of interviewing professor Ruut Veenhoven. Emeritus professor at Erasmus University Rotterdam, founder of the Journal of Happiness Studies, and the driving force behind the World Database of Happiness. Known nationally and internationally as the world's first professor of happiness.
On December 9, 2024, he passed away. A great loss for everyone who takes the subject of happiness seriously.
One statement from our conversation has stayed with me ever since.
"The impact of personal circumstances on work happiness weighs considerably more heavily than the influence of work circumstances on life happiness."
That's a sentence that makes most directors and HR managers uncomfortable. And rightly so, because the implication is significant.
Ruut Veenhoven was affiliated with Erasmus University Rotterdam for more than fifty years. He built the World Database of Happiness, a unique collection of scientific data on life happiness worldwide. How happy are people? What makes them happy? Which circumstances contribute to a happy life, and which don't?
His work was never abstract. It was always aimed at a practical question: what do policymakers, employers and individuals need to know to promote happiness?
That's exactly the question I put to him as well.
In our conversation, Veenhoven made an important distinction that I've brought up in every conversation about work happiness ever since.
There's the bottom-up effect: work happiness contributes to life happiness. If you enjoy your work, you also feel better about your life. That sounds logical, and it is.
But there's also the top-down effect: life happiness influences work happiness. How happy you feel in your life partly determines how you experience your work. And this effect is, on average, twice as strong as the bottom-up effect.
Translated to the workplace: how much an employee enjoys their job is largely determined by how much they enjoy their life. Not by their job description. Not by their salary. But by what's going on at home.
I asked Veenhoven why so many organizations struggle to structurally improve work happiness.
His answer was clear. It's worthwhile for a manager to work on better policy, a safe workplace, a good atmosphere and clear standards of conduct. But the statistics show it's more effective to contribute to employees' life satisfaction, because of the significant top-down effect.
And that's exactly what makes it so complex. Because an employee's life satisfaction depends on things outside the employer's sphere of influence. What's going on in their relationship? How's their family doing? Friends, family, health? How well does someone take care of themselves?
An employer can't control that. But an employer can pick up on signals. And start the conversation in time.
I also asked Veenhoven about the relationship between happiness and health. His answer was as clear as it was confronting.
The effect of happiness on health is roughly twice as strong as the reverse. Unhappy people activate the fight-flight-freeze mechanism more often, become more mentally vulnerable, and take less good care of their bodies. All of those things together make them more susceptible to illness.
Unhappy employees are therefore not just less productive. They also face a greater health risk. And that risk is largely determined by what happens outside of work.
Happy employees are more productive, perform better and handle customers better. They're healthier and take less sick leave. Veenhoven didn't say that as an opinion. He said it as a scientific fact.
The lesson from Veenhoven's research is that you need to be aware of the connection. What's happening at home affects what happens at work. An employee under pressure at home brings that with them. Not as a choice, but as a human being.
As an employer, you can respond to this in two ways. You can do nothing and wait until it manifests as absence or departure. Or you can create an environment in which signals become visible sooner and are picked up sooner.
The second requires knowing how employees are really doing. Not based on an annual anonymous survey. But based on continuous, personalized attention.
At JobAligner, we've translated Veenhoven's insights into a concrete approach.
We've developed various themes, such as: work-life balance, life happiness, meaning and health. The work happiness questions within these themes are specifically designed to also pick up on signals from personal life. Not to monitor, but to enable the manager to have a timely conversation. Not as a therapist. But as someone who's genuinely interested in how things are going and who shows compassion. This genuine attention fosters connection and greater engagement. Moreover, a conversation at the right moment prevents dropout and turnover.
That's what Veenhoven meant. Not that employers should try to manage employees' personal lives. But that they take the connection between life happiness and work happiness seriously, and build an environment where employees feel seen.
Want to see a showcase of how we've translated these insights into practice in a Work Happiness App? Request a demo here.