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.

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Economics

Nationalism

Politics

25 September 2025

4 min read

Millions of children go hungry in a country that dares to call itself godly

The gospel of national greatness is less about grace and more about political grit

George Pitcher

George is a visiting fellow at the London School of Economics and an Anglican priest.

A sand drawing shows an unhappy child's face with the tide coming in from below

A sand drawing for a child poverty campaign.

Barnardos.

If anything, the UK – and more specifically England – is becoming a Christian country again. But not necessarily in a good way. The rise of Christian nationalism mirrors the American experience, with Christian symbols such as the cross weaponised against asylum seekers and the knuckle-draggers under them, marching as to war.

But there are still many non-belligerents who would stake a claim to our Christian nationhood. Wiser counsels such as the historian Tom Holland. Or Danny Kruger MP, who spoke to a near-empty chamber in parliament recently, before defecting from the Conservatives to Reform UK, about a Christian restoration, envisioning a "re-founding of this nation on the teachings that Alfred made the basis of the common law of England." He may need to explain that slowly to Nigel Farage.

But by what measure do we claim to be a Christian country? Here’s one: Child poverty. It’s very hard to make a case for a state being foundationally Christian in principle if significant numbers of its children go hungry. And the UK shamefully ranks among the worst of the world’s richest countries in this regard, with our children’s poverty rates rising by 20 per cent over the past decade – defined as those living in a household with less than 60 per cent of the national median income, so currently less than about £19,000 a year.

That’s some 4.5 million living in poverty, or 9 in a typical classroom of 30. Unless action is taken the number will push five million by 2030. Anecdotal evidence from teachers is truly shocking. Children arrive hungry at school with empty lunchboxes to fill and feed family at home. The UK ranks below poorer countries such as Poland and Slovenia, which are currently cutting their child-poverty rates, and well ahead of other wealthy nations such as Finland and Denmark.

It’s a national disgrace. Christologically, it also fails the minimum threshold for a nation that supposedly holds that the kingdom of heaven belongs to children. In damp and sub-standard housing this winter, lacking nutritious diet and prone to ill-health, heaven will have to wait for these British children.

The same gospel tells us that the poor are always with us, which may make us resigned to it. But political complacency won’t do. If there is always relative poverty against great riches, then the true measure must be what we’re trying to do about it. The damning answer to that seems to be very little.

It’s actually worse than that. The circumstance is one of our own deliberate, political making, exacerbated by the then chancellor George Osborne, who introduced the two-child benefit cap in 2017. That limited benefit payments for families claiming Child Tax Credit or Universal Credit for more than two children. It was part of Osborne’s pantomime wicked-squire act, as he repeatedly told us with a straight face that “we’re all in this together”. It was also borderline eugenics, because one of its effects was to limit the breeding of “lower orders”, the benefit cap disproportionately hitting the budgets of working and ethnic-minority families.

With Osborne’s selective austerity and social-engineering drive long gone, it’s well past time for a Labour government to do something to rectify such social injustice. Current chancellor Rachel Reeves must abolish the two-child benefit cap in her November Budget. With other welfare cuts prevented by Labour’s summer backbench rebellion, the question inevitably squawked by right-wingers is how that will be paid for.

Opposition parties relish the prospect of Reeves welching on pre-election promises not to raise taxes on working families. And abolishing the two-child welfare cap could cost £3.5 billion a year.

There are creative ways and means. Veteran chancellor and former prime minister Gordon Brown – the unsung hero of the 2008 worldwide financial meltdown, without whom we wouldn’t have an economy to do anything with – proposes fairly taxing the excess profits of the £11.5 billion gambling industry, which enjoys VAT exemptions and pays just 21 per cent tax, compared with 35-57 per cent in other industrialised countries. And if more money is needed then remove some of the interest-rate subsidy enjoyed by commercial banks when they deposit money at the Bank of England. That is what social justice looks like (gambling also costs the NHS £1 billion-plus in harms, so it’s time for the industry to pay up).

That points to some fiscal answers. There are other actions that must be taken this autumn, at political conferences and on any platform available to those with a public voice and conscience. It’s good to see Stephen Cottrell, Archbishop of York and stand-in primate of England in the absence of Canterbury, laying into the two-child limit and benefit cap.

Both Cottrell and Brown tell heart-breaking stories of children’s poverty in the UK. We must fight it and ensure that Reeves’ forthcoming Budget does so. As the children’s commissioner for England, Dame Rachel de Souza said recently that millions of children are living in “almost Dickensian levels of poverty”. The irony is that in Dickens’ time we were called a Christian country.

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