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

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Grenfell disaster

Trauma

6 February 2025

6 min read

Grenfell: how long should we remember?

There are good and bad ways of remembering.

Graham Tomlin

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

A white building wrap around a tower is topped by a green heart and the slogan: Grenfell Always In Our Heaets.

Grenfell Tower, Summer 2024.

Rc1959, CC0, via Wikimedia Commons.

For nearly eight years now, Grenfell Tower has remained standing as a reminder of one of the most painful days in recent British history. The news that the government intends to dismantle the remains of the Tower has split local opinion. Some of the bereaved and survivors suggest that the government has scarcely consulted them. For many, the building is a tomb, still containing the memory, if not the actual remains of their loved ones whose bodies could not be recovered. They understandably fear them being forgotten when the building no longer stands as a reminder. Last year I sat in on a gathering where bereaved families and survivors of the fire told their stories in the hearing of representatives of the companies who were responsible for the cladding which caused the fire to spread. The memories and emotions are still raw and unhealed.

On the other hand, many local residents would like it taken away, as its constant, looming presence is a painful reminder of that dark night. They also see the logic in bringing down a fatally damaged and increasingly dangerous structure that costs the taxpayer millions each year to keep from collapsing under its own weight.

The key issue at the heart of this debate is how we remember - especially, how we remember pain. In the rhetoric around Grenfell, as with many other tragedies, we often hear calls to ‘always remember’ and that we must ‘never forget’ the wrongs done which caused the deaths of those 72 people. The Grenfell Memorial Commission, which was charged with thinking about what memorial should stand on the site of the building in future, claimed as its aim to “make sure the Grenfell tragedy can never be forgotten.”

Such calls to ‘never forget’ are powerful. They seem a proper tribute to those who died, they ensure that those culpable are not let off too easily, and that justice is properly done. To blithely forget such horrendous evils seems an affront to justice, and a morally culpable act.

Yet must we always remember the hurts and pains of the past? Can we imagine a future where such memories fade into the distance and no longer cast their painful shadow over our lives?

Whether and when Grenfell Tower comes down, is yet to be determined. Yet only when we keep in mind the destination of the journey of healing can we make good decisions...

Theologian Miroslav Volf asks all these questions in his book The End of Memory. He describes good and bad ways of remembering. We can remember to cherish the dead, to learn lessons for the future, to ensure justice is done. Yet we can also remember to nurse grievances, to cling onto grudges, to imagine horrible pain inflicted on those who wronged us. Memories of wrongs done to us can imprison and define us purely as victims, never in control, always subject to the actions for others, with no agency of our own.

Volf’s Christian faith tells him that the human race is beckoned towards a new world, in the full presence of God, of what he calls ‘final reconciliation’. It is a place where we will be captivated by a vision of the beauty and goodness of God, a vision that we only dimly glimpse in this world. He asks the question: in such a world, will we remember all the wrongs done to us? Can we imagine still clinging onto the memory of the sins and crimes that others inflicted on us? Even if that were in principle possible, would we remember all the harm done to us? And the harm we did to others? If not, which sins would we remember? Which ones would we forget? Would not such memories blight the joy that such a world would surely offer?

Reflecting on his own youthful and painful memories of interrogation in communist Yugoslavia, and other tragedies such as the 9/11attacks, Volf imagines getting to the point where we don't forget the terrible things that others have done to us, but when we actively don't remember them. They still occupy a place in our minds but are instead relegated to a corner of our consciousness, under our control, no longer rearing their ugly and painful heads when triggered by other events. Such an ability not to remember, he suggests, is a good thing:

"Non-remembrance of wrongs suffered is the gift God will give to those who have been wronged."

At the same time, Volf is careful not to imagine getting to this point too easily. Wrongdoers cannot for a moment insist that those they have wronged forget their misdeeds. Such non-remembrance can only happen when truth has been told, sins punished, and justice done. Yet when all that has taken place, that ‘final reconciliation’, Volf imagines, might even embrace the unimaginable - an ultimate reconciliation between the wronged and the wrongdoers.

Is it possible to imagine children whose parents were killed because of the negligence and culpable cheating of contractors who knowingly put unsafe cladding on Grenfell Tower, ever being reconciled to and even embracing the perpetrators? Volf suggests we can, while recognising that this can only happen when the crime has been identified, fully recognised, repented of profoundly, forgiveness offered and accepted and the appropriate penalty paid.

While such a process remains incomplete, the obligation to remember remains, and reconciliation cannot yet take place. But true healing from such hurts is not to be forever dominated by them, defined by them, or to live in constant enmity and resentment because of them. It is, instead, to gain the strength and ability not to remember them, not to be defined by them, and even - possibly, perhaps - to find reconciliation with their perpetrators.

The Grenfell Public Inquiry that reported last year was an important step for the bereaved and survivors. It was not the end of the journey. Far from it. The process of enacting justice through prosecution of the guilty lies ahead. But as an exercise in truth-telling, in giving perpetrators the opportunity to own up and confess their guilt, in a truthful recognition of what went wrong, it was a vital step towards the possibility of reaching that stage when the memory of Grenfell no longer defines its victims. It opens up the possibility at some point in the future, where they might be in control of their memories rather than their memories controlling them.

The Danish Christian philosopher Søren Kierkegaard once wrote that we humans need to learn both “the art of forgetting” and “the art of remembering”. To know when and how to do one and when to do the other is the gift of God and an art of true wisdom.

Whether and when Grenfell Tower comes down, is yet to be determined. Yet only when we keep in mind the destination of the journey of healing can we make good decisions about such fraught and emotionally charged issues. The Tower cannot remain as it is - everyone acknowledges that . Yet it's hard for many to think about its disappearance without knowing what will replace it. Which is why plans to demolish the Tower must go hand in hand with the plans for the lasting Memorial that will stand on the site. Yet that can only happen if it serves the goal of being able truthfully to remember no longer the pain and injustice of the past.

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