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Awe and wonder
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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.

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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4 min read

How our social media turns us against ourselves

We treat others differently when our eyes and hearts are forced inwards.
An unhappy father sits next to a scared son in a police interview room.
Stephen Graham and Owen Cooper star in Adolescence.
Netflix.

My wife turned to me this week whilst watching the compelling Netflix drama Adolescence and asked if it was based on a true story. That proves the quality of the acting, script, and storyline. But it also demonstrates the drama’s prophetic nature. Conceived two and a half years ago by Stephen Graham and Jack Thorne, the perversion of Jamie’s underdeveloped brain and developing masculinity by social media forces has come to reflect real-life extreme violence by young men. With the sentencings of murderers Axel Radakubana and Nicholas Prosper in recent weeks, Jamie’s actions resonate deeply. Adolescence isn’t based on a specific true story, but that doesn’t prevent it from being true. 

What about the role of social media in these narratives? Radakubana and Prosper were radicalised by violent content they had accessed online. With social media, extreme content does well, particularly on sites with no filters on pornography and violence like Reddit and X. We are beginning to discover that content algorithms are not neutral, instead siloing us into echo chambers that are deliberately forming us into better consumers of content, advertising, and objects. Social media harvests our data and sells it on- meaning it cultivates us as the product. 

Yet these manipulations cover over the deepest issue. Social media depersonalises us, preventing us from making genuine human connection and perverting our view of anybody but us. The German philosopher Martin Buber differentiated between two different ways for humans to exist in the world. One was I-It; in a person treats everyone and everything they come into contact with as an ‘It’- something to be used or taken advantage of. 

The other was I-Thou, in which humans approach every other person as a unique being, with resources to offer the I which ensures that a mutual, open, present connection ensues. For Buber, the ultimate ‘Thou’ was God, with whom humans can have the deepest and most transformative connection. 

Social media ensures we see life in ‘I/It’ mode by removing genuine contact with others and providing curated, fake, existences that can never be open to genuine connection with others. Love and affection become commodified; likes, follows, reactions. Our presentation of ourselves becomes more extreme, more perfect, more beautified, to keep mining the commodities. Our eyes and our hearts are forced inwards, and we lose any sense of encountering a ‘Thou’ on the way. We just keep encountering the I: our own thoughts, needs, desires, self-radicalised by our own insular minds. 

This can be our contribution to the conversation on the culture our young people, and particularly young men, are growing up in. To live I/Thou lives.

The great St Augustine back in the fourth century developed the idea of ‘original sin.’ All humans are prone to destruction: it’s in our DNA. The evidence for such an idea is found in every human experience, as the destructor and the one destructed. Left unchecked without genuine connections with others to challenge and expand our hearts, an I/It life digs deeper and deeper into these destructive impulses until our humanity is twisted into violent obsessions. 

The I/It life focuses completely on self-glorification through any means, something amplified by social media. What if we don’t get enough likes, follows, reactions? What if we cannot achieve self-glory through the more banal mediums of attraction, attention, popularity?  

Both Radakubana and Prosper said they wanted to be notorious, attempting to find the most extreme channel for their violence as possible to ensure they are never forgotten. They will not be the last. Jamie continues to deny his crime but in episode three of Adolescence he states that he could do whatever he wanted to Katie, the young girl he murdered. The same impulses come through; others as objects to take advantage of in achieving self-satisfaction. 

The good intentions for human connection that some of those early social media sites were set up for has been largely lost. But the good intention can remain in our own resolution to live an I/Thou life. Putting down social media and picking up connections with humans in the real world by seeing the other with curiosity and openness will ensure that we are constantly turning our heart outwards, embracing genuine relationships, and finding space in our heart to think of the other before ourselves. These are the relationships that will make us more human. 

Ultimately, Buber was right that the ultimate ‘Thou’ connection we can make is with God. The Christian story is full of God’s desire to seek out relationship with humanity, to allow us to find a connection with God that surpasses our own human experience and transforms us to be people that slowly grow away from our destructive instincts.  

What might Christian faith have to contribute to the conversation on the culture young men are growing up in? To live I/Thou lives that are curious, open, and seeking truest divine and human connection. Such a life might even touch those who have been ravaged by social media and ignored by other I/It lives. It might even inspire them to compassion and curiosity that look beyond the content that turns them inwards, to turn outwards and find a healthier future. 

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