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Awe and wonder

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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.

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Leading

Psychology

Theatre

21 October 2025

6 min read

Are you a narcissist?

We all have a little bit of narcissism in us – the question is whether we’re a Moses or an Iago

Henna Cundill

Henna is a researcher with the Centre for Autism and Theology at the University of Aberdeen.

An Elizabethan man holds a dagger up while grinning.

Kenneth Brannagh's Iago in the 1995 film of Othello.

Sony Pictures.

Is everyone a narcissist these days? It sometimes feels so. Google Trends data shows an eleven-fold increase in searches for “narcissism” between 2010 and 2023, and the term has become a social media buzzword. Online quizzes asking, “Am I a narcissist?” are everywhere, offering dubious self-diagnosis at the click of a button. Genuine Narcissistic Personality Disorder, however, is complex and painful – especially for those in close relationships with someone who cannot acknowledge the harm that they are able to cause or feel any sense of remorse. Narcissus, in Greek mythology, was a handsome young man who was cursed to fall in love with his own reflection, but it was not until the early 20th century that the term “narcissism” was then picked up by the emerging field of psychoanalysis. Initially, Sigmund Freud adopted it in a non-pejorative way to describe the stage in child development when an infant is aware only of their own need for love and attention. Eventually, as that infant grows into a child it begins to experiment with showing others love and attention, and if surrounded by the right relationships, the child learns that love can be reciprocal – a back-and-forth pattern of give and take. Freud wrote:

“Loving, then, contributes to the lowering of self‑regard. Having one’s love returned, however, restores one’s self‑regard and replenishes one’s narcissism.”

In its healthiest form, narcissism reflects a positive sense of self – a recognition of one’s own needs and a reasonable desire for them to be met, whilst also knowing that we must give of ourselves, again within reason, to meet the needs of others. In this sense, yes, we are all a little bit of a narcissist. It is only occasionally, most commonly when the early bond between a child and their caregivers is inconsistent or unstable, that this self-focus can become problematically distorted, sometimes leading to a personality disorder. For such a person, a constant hunger for attention and affirmation, often combined with a lack of empathy or a tendency to use empathy as a means to manipulate others, leads to a life of take-take-take; one which can cause significant harm to others and ultimately to themselves.

Estimates for Narcissistic Personality Disorder are that it affects about one to two per cent of the population, a number which is intriguingly high. The unfortunate news is that true Narcissistic Personality Disorder is notoriously difficult to treat, precisely because key tenets of the condition include a lack of self-awareness and an overinflated sense of self belief. The classic response of the one with Narcissistic Personality Disorder is, of course, “How dare my therapist say that I am a narcissist? They must be the problem!”

However, much more prevalent are what might be called “sub-clinical narcissists” – people who act selfishly, arrogantly, or manipulatively, influencing others to conform to their desires. We all know one or more of those – sometimes we meet one when we look in the mirror. Whilst this may make us feel pretty rotten, whether we are the giver or the receiver of such treatment, it does not always warrant a clinical intervention. Even so, it can still be extremely difficult to process how and why human narcissistic tendencies are able to cause others so much pain. If, as Freud proposes, a certain degree of narcissism is hardwired into human nature, what can we do about its tendency to evil?

In Shakespeare’s tragedy Othello, the character of Iago is a master manipulator who displays all the cold-hearted indifference of a true narcissist. Early in Act 1 he expresses his indignation that he has been passed over for promotion. Firmly convinced of his own superiority, he slyly boasts that he will play a false self to Othello, feigning loyalty for his own ends and stating: “I am not what I am.”

These words are a clever and rather chilling inversion of a famous phrase from the Bible. In the story of the Exodus, God meets with Moses in the form of a burning bush, and when Moses asks for the name of God a voice replies: “I am what I am.” As Moses stands before God, barefoot and awestruck, he hears that enigmatic statement and is forced to confront the question of who he truly is – an ashamed murderer, a fugitive, a short-tempered man of slow speech but hasty acts. Moses acknowledges all these awkward truths about himself and declares himself wholly unfit to be called by God as a leader. Yet God uses Moses anyway, and at the end of his life, Moses dies a celebrated hero – a deliverer who is mourned by all his people.

Not so Iago. As the tale of Othello draws to its tragic close, Iago is wounded, arrested and escorted from the stage. The audience knows that he has been condemned to execution, but unlike pretty much every other character in that fateful final scene, Iago’s death does not take place onstage. He is simply removed, dismissed from everybody’s notice – a narcissist’s worst nightmare.

One can see the crucial difference between Moses and Iago – whilst Moses is concerned that his own flawed nature makes him unfit to be become a great leader, Iago is driven to grasp at leadership by a belief in his own grandiosity and acts vengefully when passed over. Right to the end, Iago expresses not one word of self-doubt or regret for his actions. Indeed, he refuses to account for himself at all. “Demand me nothing,” he says at the close; “What you know, you know.”

Seemingly, the problem of narcissism’s tendency towards evil lies not in actions, but in methods of self-evaluation. While we all make regrettable mistakes, and sometimes it can be hard to judge the difference between unreasonable selfishness and reasonable self-preservation, the true narcissist is afraid to explain themselves, unwilling to bear the judgement of outside scrutiny. The narcissist will look only in the mirror.

But whereas a mirror only reflects light, a burning bush produces it. In the end, the resources of the Christian tradition do not simply diagnose our narcissism, they offer us a way through it. They offer an outside perspective from which we can truly evaluate our own actions – a light that shines through the mirror.

If you have ever clicked the link for the online quiz, or been tempted to, then that is an encouraging sign of willingness to be open to outside scrutiny. But of all things, would we really want to trust only human voices, especially the unknown and unknowable voices of the internet, as an authoritative arbiter? If narcissism is so inherent to human nature, it logically takes something higher and brighter than our fellow human beings to really bring it into the light. But in any case, you can save yourself the time of completing that dubious online diagnostic quiz since the whole enterprise can be summed up in just one question:

Have you ever wondered if you have Narcissistic Personality Disorder? If the answer is yes, you probably do not. So demand yourself nothing, what you know you know.

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