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

Comment

Community

Migration

Politics

20 May 2025

5 min read

Starmer’s ‘island of strangers’ rhetoric is risky and wrong

The Prime Minister needs an English lesson.

Krish Kandiah

Krish is a social entrepreneur partnering across civil society, faith communities, government and philanthropy. He founded The Sanctuary Foundation.

A prime minister stands next to an Albanian police officer in front of a ferry.

Border control. Starmer in Albania.

X.com/10DowningSt.

In a recent speech launching the UK government’s white paper on immigration, Prime Minister Keir Starmer expressed concern that the country risks becoming an “island of strangers.” It is a compelling phrase - yet, for many, a deeply worrying one. Some argue it echoes Enoch Powell’s notorious 1968 “Rivers of Blood” speech, in which the then Conservative MP for Wolverhampton claimed that people in the UK were being “made strangers in their own country”. Even if the reference was unintentional, the sentiment is divisive and dangerous. Here are five reasons why this narrative must be challenged.

Geography: We are fundamentally connected

First and foremost, the United Kingdom is not a single island. To describe it as such is not only geographically inaccurate but symbolically unhelpful and politically careless. This sort of language risks excluding all those UK citizens who live in the other 6,000 islands that make up our country - islands such as the Isle of Wight, Anglesey, the Hebrides, Orkney, Shetland and the Channel Islands, as well as the 2 million UK citizens who live in Northern Ireland. Many of our families, mine included, are testament to the fact that between the British Isles there are connections and marriages. We are islands, plural, united by a national bond of friendship and collaboration, and a shared story of connection across water.

Sociology: We are intrinsically social

The notion that the UK is becoming “an island of strangers” contradicts what we know about how human societies function. We are fundamentally relational - forming and building connections in our schools, workplaces, neighbourhoods, shops, and clubs on a daily basis. Even if we do not know the names of those who live across the street, we have a great deal in common. They are not strangers, but neighbours. In times of crisis, as shown during the Covid pandemic, neighbourliness is a critical front-line defence. To undermine that by calling our neighbours ‘strangers’ is a recipe for social breakdown. True social cohesion can never come through exclusion only by being deliberately nurtured through acts of welcome, the language of inclusion and recognition of shared purpose and identity.

Language: What we say matters

In his speech, the Prime Minister gave credence to the claim that migrants fail to integrate because they don’t speak English. He said: “when people come to our country, they should also commit to integration, to learning our language.” But English proficiency is not the main barrier to social cohesion. As a country that proudly recognises multiple languages: Welsh, Scottish Gaelic, Irish, Cornish, British Sign Language, we should understand this. And as a nation who fails miserably at learning other world languages we should appreciate the enormous effort it takes to learn any level of English. The vast majority of migrants put us to shame in how quickly and readily they learn to communicate effectively. Might I suggest that the Prime Minister - whose speech contained questionable language that was factually untrue, politically dangerous and socially offensive - might benefit from an English lesson himself?

Honesty: We benefit from migration

When the Prime Minister claimed he was launching a strategy to “close the book on a squalid chapter for our politics, our economy, and our country,” he implied that migration is to blame for many of the difficulties the UK is facing. This is not a new tactic — some of the world’s darkest moments have been preceded by politicians stoking fear and resentment against immigrants for political gain. We must resist this rhetoric. Perhaps we could start by asking exactly which migrants are being blamed for this so-called "squalid chapter"? Is it the 200,000 people from Hong Kong who have arrived under the British National Overseas scheme, bringing skills and making major contributions to our economy? Or the 250,000 Ukrainian refugees who have been welcomed with open arms and helped knit communities closer together? Is it the 30,000 Afghans who supported British forces, risking their lives to do so? Or the 750,000 international students contributing £35 billion a year to the UK economy, sustaining our universities and global reputation for outstanding education and research? What about the 265,000 non-British NHS staff who work tirelessly to care for our sick and elderly? Blaming migrants for the UK’s problems is dishonest and dangerously divisive, potentially alienating the very people who are often most invested in making the country stronger, safer, and more successful.

Integrity: We need to fix the real problem

The Prime Minister’s use of the phrase “island of strangers” strikes a chord, not because we are all strangers to one another - we are not - but because many of us increasingly feel isolated in our own communities. There is evidence to support this emotional response. According to the Office for National Statistics, around 27% of adults in the UK report feeling lonely always, often, or some of the time. A report titled A Divided Kingdom, published just a day after the government’s immigration white paper, highlights growing intergenerational divides with only 5.5 per cent of children in the UK living near someone aged 65 or older, and just seven per cent of care home residents regularly interacting with anyone under the age of 30. Young adults are increasingly working remotely, reducing opportunities for casual, everyday social contact. Rising numbers of people live alone, and digital technology — while connecting us in some ways — often replaces the richness of face-to-face relationships.

These shifts are not caused by immigration, and blaming migrants for the disconnections and discontent we feel only distracts us from addressing the real causes of social fragmentation. We need to find ways to reconnect with one another in person, recognising in those around us the image of God, our common humanity and the opportunity for service.

Starmer’s narrative must be challenged before it becomes a self-fulfilling prophecy. The great English poet and cleric John Donne famously wrote:

“No man is an island, entire of itself; every man is a piece of the continent, a part of the main.”

It would be sad if, in our modern world, we lost sight of that truth and ended up becoming estranged islanders floating on a sea of fear and xenophobia.

Celebrate our 2nd birthday!

Since Spring 2023, our readers have enjoyed over 1,000 articles. All for free.
This is made possible through the generosity of our amazing community of supporters.

If you enjoy Seen & Unseen, would you consider making a gift towards our work?

Do so by joining Behind The Seen. Alongside other benefits, you’ll receive an extra fortnightly email from me sharing my reading and reflections on the ideas that are shaping our times.

Graham Tomlin
Editor-in-Chief

Join with us