Article

Awe and wonder

Comment

7 September 2023

6 min read

The heart of the matter

Heart doctor Michael Henein steps back to consider the unseen and unique wonders of the human body’s design.

Michael Henein

Professor Michael Henein is a consultant cardiologist, and a Professor of Cardiology at Umea University, Sweden.

A model of a human heart on a short stand.

Photo by Jesse Orrico on Unsplash.

Shakespeare famously asked:

“What a piece of work is a man, how noble in reason, how
infinite in faculties, in form and moving how express and admirable, in action how like an angel, in apprehension how like a god! the beauty of the world, the paragon of animals—and yet, to me, what is this quintessence of dust?

Humans may be complex, capable of great heroism and deep depravity, yet it is worth stopping for a moment to look at the human body and mind to marvel in what we have become, and how we are made.

The visible design of the human body points out common features shared along with other members of the animal kingdom. Examples of these features are: two eyes, two ears, two nostrils, one mouth and four limbs, attached to a body and head. Detailed study of different seen parts of the body may, however, show some differences. For example, the presence of fingers and nails, hair distribution as well as a developed tail. While most members of the animal kingdom have teeth and a tongue, those two could also vary in their number and size, respectively, according to different species. Genetic investigations have shown that we humans share 99 % of our genes with animals, suggesting that our “earthly” component shares a common origin. Indeed, the twenty first century scientific findings match what is written in the Genesis story of creation, a story written over 3,500 years ago, well before genetic sciences came to light.

Creatures great and small

As for morphological differences between animal species, it is difficult to naively conclude why some are wild while others are man-friendly-even if the wild ones have different shapes, design, dietary habits, body size and life span. Other important observed features of the members of the animal kingdom are that they are all born, they all age, then ultimately die.

If we are to look at the unseen features of the members of the animal kingdom, we can again identify similarities. For example, all have a gastrointestinal tract, a cardiovascular system, a reproductive system, a respiratory system, a urinary system and much more. While these systems may differ slightly between species, the overall structure and function achieve similar purposes. For example, heart speed is faster in small animals like rats compared to big ones like elephants who have very slow hearts. Likewise, the respiratory system and the number of respiratory cycles per minute are significantly faster in running animals compared to the sedentary and slowly moving ones. Finally, the number of offspring also differs in different species, being just one at a time in big animals like elephants and horses, and many offspring in small animals like rabbits and mice. Such paradox between the number of offspring and animal size makes you think of the important determining role of the activity of those animals.

Unseen wonders

Now to turn to the rest of the animal kingdom and the unseen features of the human body. To start, let us look at the amazing functions of the human brain and its various functions. When humanity is sometimes described as the crown of creation, such a description is based on the superiority of human brain function and skills. Its sophisticated structure and how vital centres are created deep in the skull, to be protected from traumas, make you marvel. Also, the brain controls the different functions of the whole body, with its sensory and motor activities, various vital system functions including the lungs and the heart, all endocrine glands’ function, in addition to various receptors and centres that allow utmost precision and accuracy in everything we do. An example of this kind of precision is a doctor feeling a vein or an artery with the tip of a finger to insert a needle or a musician moving a finger a few millimetres while playing a violin, to produce the exact sound needed. Furthermore, the integrated function of human muscles, nerves and spinal cord is also amazing, let alone the synapsis between the nerve endings and muscle bundles, the chemicals secreted in them which allow electric stimulus transmission from the nervous system to achieve the motor function and desired movement.

The human brain also has the unique feature of storing knowledge. Of course, we should not ignore the importance of the training and programming ability of human brain. We learn how to drive a car, how to play games, how to study, how to operate safely on a sick patient. Such acquired skills are quite limited in other members of the animal kingdom. Moreover, the human brain has the unique ability to invent, discover, improve and correct errors it identifies.

Another very unique feature of human brain is its ability to conduct speech, a feature of humans that is under-developed in other members of the animal kingdom. While most animals can make noise and sounds, only humans can articulate words, sentences and even sing very complex songs. This unique ability seems to be the underlying mechanism behind the development of languages which are based on the human ability to talk and transmit information and knowledge by words and phrases.

The unseen brain has allowed human life to develop over time, building skills and achievements from generation to generation. Millennia ago, humans lived in huts together with animals, and now they build houses and palaces to live in. Centuries ago, we used donkeys, horses and camels to travel but now we use cars, trains, ships and airplanes. Our ancestors burned wood and coal to cook and to warm but now we use electricity to do these.

When we look carefully at the unseen parts of the human body, we also realize that we cannot alter any of it, despite the scientific advances made over the years. We can understand what harms our body and take measures to avoid it. Out of the ability of our brain to discover and invent, we have now produced science-based means for curing various diseases. Consider how we can replace a dysfunctional heart valve or a mobility-limiting joint. These inventions have resulted in a better quality of life, alleviating of symptoms, even helping to avoid early death, in some cases such as heart disease and cancer.

The heart of the matter

Another unseen source of life in humans is the heart. This fist-size organ is so complex in its structure and function. Recent scientific advances have enabled us to study heart function in milliseconds, hence the development of pacemaker treatments. They have also allowed clear imaging of the inside of the heart and the identification of pathologies, developments that guide practitioners to the optimum treatment of heart conditions. Recent discoveries have also allowed us to better understand how people develop coronary artery disease and how the pathology starts at the innermost layer of the arteries, particularly in individuals carrying significant risks for atherosclerosis including, smoking, high blood pressure, diabetes, high cholesterol and obesity. Amazingly, obesity has been shown to be the strongest underlying cause of other risk factors, hypertension, diabetes and hypercholesterolemia. So, nature cannot be blamed in many of these patients but our own patterns of behaviour. Science has shown that walking at least 5,000 steps each day, complying with the design of our body, reduces the likelihood of developing coronary artery disease by 15 per cent.

The unseen physiology of the rest of our body systems and the interaction between systems make us wonder how we are made. A rise of our body temperature by one degree due to a bug infection affects all body systems from the brain to the heart. A virus which cannot be seen by the most powerful microscope can destroy our lungs and cause premature death, as was the case with COVID-19 and others.

Finally, human inventions in the form of powerful microscopes have allowed scientists to study the human cell, which is the smallest living component of our body. Such small cells cannot be replicated in any factory in the twenty-first century, despite the vast scientific developments that surround us. You'll be surprised to learn how complicated and meticulously fine-tuned a human cell is and also how it functions, connects with other cells and other parts of the body. An example of this is the interaction between body minerals, calcium, sodium and potassium with heart and muscle individual cells. Such a function is critically controlled by many factors such as time, electric stimulation and pressure differences producing remarkably harmonious contractions and relaxation of the muscles without missing a beat.

Article

Belief

Church and state

Comment

Politics

6 August 2025

6 min read

Danny Kruger, Christian values, and the dangers of thin religion

Thick or thin? Christianity’s role in Britain’s cultural crossroad

Graham Tomlin

Graham is the Director of the Centre for Cultural Witness and a former Bishop of Kensington.

A backbench MP stands in an almost empty chamber and speaks

Danny Kruger addressing Parliament.

Parliament TV.

In case you hadn’t noticed, a speech given to an audience of about seven people in a sparse House of Commons recently went viral. Danny Kruger’s recent call for a Christian restoration in the UK has generated a lot of attention.

I've noticed two distinct responses in recent days. On one side, there are three (or more) cheers for Danny. He has been interviewed at Christian festivals, lauded for a brave, deeply considered and soulful appeal to the Christian heritage of the nation. He has been thinking deeply about this for some time as demonstrated in his book Covenant, sometimes seen as a manifesto for a renewed Conservatism based around the claims of family, community and nation, and summarised in this Seen & Unseen article. As one of the most prominent voices against the recent bills to permit assisted dying and the termination of full-term embryos, he is clearly reeling from the impact of these devastating recent votes in the Commons that, more than anything else, seem to demonstrate how far the nation has slipped its Christian moorings.

Yet it’s not hard to stumble across another reaction. A former Bishop of Oxford called Kruger’s claim that the UK was a Christian nation anachronistic and counter-productive. Others have pointed out that many Jews, Muslims or hardened atheists would not be delighted to be told that ‘it is your church and you are its member.’ Others question whether there can be such a thing as a 'Christian nation'.

Some have picked up on a darker side to all this. Recent riots outside hostels for immigrants in Rotherham and Norwich showed protesters carrying flags of St George, even brandishing a wooden cross. Stephen Yaxley-Lennon, aka Tommy Robinson, and Nigel Farage have recently been speaking much more openly about the ‘Christian values’ on which Britain is founded, and many on the extreme right seem to have latched onto Christianity as at the heart of what they see as a cultural, civilisational war. Kruger’s talk of the gap left by Christianity’s demise being filled by Islam and, what worries him more, a kind of ‘wokeism’ that blends ‘ancient paganism, Christian heresies and the cult of modernism’, sets up a stark opposition. He goes on: “That religion, unlike Islam, must simply be destroyed, at least as a public doctrine. It must be banished from public life.” The language shades uncomfortably close to some of the darker rhetoric on the right.

Now I have some sympathy with this. I have written before of how I also fear the pagan gods are making a return. Like Danny Kruger, I too believe the recent votes in the House of Commons are a dark and dangerous turn toward death not life. Yet I can’t shake a nervous feeling that, without some careful thought, we might be summoning up shades we might not be able to control.

The signs – and the solution - lie in the past. For centuries, Christianity, like all other religions, has been used as a weapon in civilisational wars. It happened in the Crusades of the eleventh to thirteenth centuries. It happened in the Balkan wars involving Serbia, Croatia and Bosnia in the 1990s and 2000. It happened in the ‘Troubles’ in Northern Ireland, where your neighbour being Protestant or Catholic was a reason to kill them.

Theologians and sociologists sometimes talk of ‘thick’ and ‘thin’ religion. ‘Thin’ religion is simply a badge of identity. It often blends religion, politics and nationalism and serves as a motivation to unite people around a cause, such as Hindu nationalism, Muslim victimhood, or Christian supremacy. It is religion seen purely as a label, a badge of tribal identity over against other religious identities, however deeply felt. It is often nostalgic, ranged against enemies who are determined to destroy it, denigrating those who are not part of the religion as less deserving of value. It sees the Christian god as one of many gods – our god – which we must fight for against other gods, rather than, as Christian theology has always taught, the one true God who sits above all other gods, the God of the whole earth. It is paradoxically a manifestation of the kind of the kind of culture that Danny Kruger hates: “a return to the pagan belief that your value is determined by your sex, race or tribe.” Tommy Robinson’s faith seems as good an example of this as any. This is ‘thin’ religion.

I propose a simple test. If someone advocates Christian values and regularly goes to church, then they have a legitimate voice.

‘Thick’ religion, however, is different. It is not just a badge of identity, but entails a set of distinct beliefs and practises. It means submitting yourself to the disciplines of the faith. In the Christian context, it a belief in God as Father, Son and Holy Spirit, that Jesus is the Son of God, that he died for the sins of the world, rose again on the third day and will return one day to judge the living and the dead. It involves a serious attempt to live the Christian life, to love your neighbour, and even your enemy, helping the poor and vulnerable, praying regularly, being consistently present at church worship and so on.

Christian hymns have always had a fair amount of militant imagery, from ‘Onward Christian Soldiers’ to ‘Fight the Good Fight’, and more contemporary ones about God ‘fighting our battles’. Yet this has always meant a serious fight against enemies within – pride, greed, anger and spiritual lethargy. When it became focussed on human enemies, as it did in the Crusades, a line was crossed from ‘thick’ into ‘thin’ religion.

It's not always easy to tell the difference between those who adopt thick and thin Christianity. I propose a simple test. If someone advocates Christian values and regularly goes to church, then they have a legitimate voice. If they turn up weekly to hear the Bible being read, to take part in Holy Communion alongside other people, regardless of their ethnicity, wealth or background, pray regularly, then, we can assume, they are serious about it. They are submitting themselves to the discipline of learning Christian faith, seeking to love their neighbour and trying as hard as they can to love their enemies. They may fail from time to time but these are the signs of someone who has grasped the grace of God which is the heart of Christian faith. Danny Kruger passes that test. Tommy Robinson and Nigel Farage, as far as I know, don’t.

If some shout loudly about Christian values, about the danger of losing the heritage of our civilization and yet show no interest in going to church, living the Christian life, praying or loving their enemies, then we shouldn't listen to them.

When the heart of Christianity is hollowed out, it becomes moralism. It becomes the law not the gospel, as Martin Luther would say. The cross becomes a stick to beat others with. Paradoxically, it is only ‘thick’ religion that ends up founding and changing cultures. Early Christianity, the kind that converted the western world, was definitely ‘thick’ religion. It was not just a badge of identity. It did not set out to advocate for political causes in the power corridors of Rome, build a Christian civilisation, lobby Caesar for ‘Christian laws’. It set out to produce people with ‘a sincere and pure devotion to Christ’ as St Paul put it, loving God, neighbour and enemy, and they changed the world by accident.

Thin religion is a dangerous thing. It uses religion as a tool for dominance and conflict. It makes sceptics think we need less religion in public life. Thick religion is good religion. It forms good people. It builds healthy societies. It’s the kind we need more of, not less.

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