Some surprising discoveries about faith, happiness, and health

Lately, I've been delving into a mountain of data that strengthens my view on the importance of faith. As someone who works daily with systems and algorithms, I often look for patterns. But the patterns that Professor Tyler J. VanderWeele from Harvard and the organization Communio have uncovered are not about software; they are about the ‘source code’ of human well-being. It is about the undeniable link between religious communities and what we call ‘human flourishing’.

The unexpected medicine: religious community and health

What I read in VanderWeele's research is nothing short of spectacular. In a world where we have elevated ‘spiritual but not religious’ to the new standard, the figures show that we might thereby be undermining our own well-being. VanderWeele demonstrates that it is specifically the  joint participation in religious services that is decisive for our health.

Data from the ‘Nurse’s Health Study’, in which 70,000 participants were followed for 16 years, showed that regular churchgoers had a remarkable 33% lower chance of dying during the study period. But the impact on our mental state is perhaps even more impressive:

• Regular churchgoers have a 27% lower chance of depression.
• They have a five times lower chance of committing suicide.
• Participants in services are 50% less likely to divorce.
• Religious participation protects against the ‘deaths of despair’—death by drugs, alcohol, or suicide—with a reduction of 68% in women and 33% in men.

The crucial point the professor makes is that these effects  not are found in people who only pray or meditate at home. There is something about the communal experience, the ‘accountability’ to one another and the shared teachings, that literally keeps us alive.

Why does the church pew work better than the yoga mat?

VanderWeele digs deep into the ‘why’. Social support explains only a quarter of the effect on our lifespan. The rest lies in deeper mechanisms.

1. Moral frameworks: The community strengthens beliefs, such as the moral conviction that suicide is wrong, which forms a powerful buffer in dark times.
2. Forgiveness: Religions like Christianity promote forgiveness of others, which in medical literature is directly linked to less anxiety, less depression and better emotional regulation.
3. Accountability: In a community, we hold each other accountable for our behavior. This helps us to avoid destructive habits and encourages us to ‘love and good works’.
4. The body of Christ: Paul’s metaphor of the church as a body illustrates how the strengths of one compensate for the weaknesses of another.

The core of the crisis: why Christianity is really shrinking

In the second part of my quest, I came across the ‘Nationwide Study on Faith and Relationships‘ from Communio. Many experts point to secularization or science as the cause for the emptying of churches, but Communio states that this is symptom management. The real root of the crisis lies in the  collapse of family life.

The data shows an uncomfortable truth: the decline of Christianity is inextricably linked to the disappearance of the ‘resident father—the father who lives in the house and is married to the mother of his children. The growth in the number of people who no longer identify with a religion (the ‘nones’) will likely only stop 25 to 30 years after the decline of married fatherhood has come to a halt.

Moreover, marriage within the church itself is a source of happiness that we often underestimate. Although we often hear about the 'limitations' of marriage in the media, married people are on average more satisfied and less lonely than anyone else in the church. In contrast, loneliness is a true epidemic among the unmarried: almost two-thirds of never-married thirty-somethings feel lonely—a higher percentage than among widows. We must again see marriage as a 'Cornerstone' (a foundation) instead of a 'Capstone' (afinal piece that only comes when the rest of your life is already perfect).

The power of the kitchen table: how faith truly survives

This brings me to perhaps the most valuable lesson for us as parents. We often worry whether we give our children enough formal religious lessons. But recent research from Communio and the Human Flourishing Program of Harvard points to something very different.

It is the  'messy, informal, off-the-cuff' conversations that truly matter in helping children develop lasting faith. We often think we have to do it 'perfectly', but children benefit more from authenticity. Precisely those unplanned moments—at the dinner table, while doing dishes, or in the car—turn out to be statistically much more important than the most formal church upbringing.

Why is that so?

• Frequency over formality: When children informally hear their parents talk about God or how their faith helps them in adversity in daily life, faith becomes something 'real' instead of a theoretical concept.
• Safety for doubt: In an informal conversation, there is room for a child's 'messy' questions. The pressure to give the 'right' answer disappears, creating space for a deeper, personal conviction.
• Authenticity: Children see faith in action. They see how a father or mother deals with stress or conflict based on their religious conviction.

Although VanderWeele's data shows that attending services is crucial for the health, it is the informal faith experience at home that ensures the  continuity of that faith across generations. It is the combination of weekly community ('accountability' and support) and daily 'messy' conversations that leads to true flourishing.

An invitation to connection

When I let all this sink in, the conclusion is clear. We cannot 'flourish' on our own. The scientific praise for the church pew is not a plea for religion as 'therapy', but an acknowledgment of a fundamental human need for a shared moral vision and real responsibility towards one another.

My call? Let's no longer see the church pew as an obligation, but as a vital source of health. And let's take the pressure off at home. You don't have to be a theologian to show your child the way. An informal conversation at the kitchen table about why you drew hope from your faith that day is more powerful than any Sunday school curriculum.

The research by VanderWeele and Communio is an invitation back home: to the community and to the heart of the family. For there, in the messy reality of being together, man finds his true flourishing. Something our prophets have been saying for a long time: the family is the foundation and the most important church place is home.