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

Politics

12 September 2024

4 min read

From Blair and Britpop to Starmer and the Oasis comeback: why character, not personality, matters

We get both the leaders and entertainers we deserve.

George Pitcher

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

Tony Blair talks to a member of Oasis at a reception.

Number 10.

Last time we had a new Labour prime minister, there were no Partygate fears in Number 10. Quite the opposite. Tony Blair’s Cool Britannia project threw its front door open to the likes of Britpop overlord Noel Gallagher of Oasis at a bash in 1997. Inheriting a rising economy, things for New Labour, as well as for Oasis, could only get better.

This time around, Sir Keir Starmer has “tough decisions” to make, such as trying to deny a universal winter fuel allowance to most pensioners. Blair arguably never had a really tough decision to make, until his Iraq war nemesis. Since then, Oasis has turned into an unacceptable face of capitalism, as the Gallagher brothers’ reunion tour next year turns into a Ticketmaster greed-fest of “dynamic pricing”. Diabolical pricing, more like.

Starmer and Blair both aspired to usher in an era of change and renewal. The similarity of their circumstances ends there. Nearly 30 years on, Starmer is in a different world. And the transformation of Oasis is totemic of that – from the joys of Britpop to the horrors of rip-off.

That times change is axiomatic. The nineties had busts and booms; the UK’s Black Wednesday currency crisis was of the former, the snarky underclass anthems of Oasis a paradigm of the latter. Now, in the 2020s, there are only busts. Like the note left in the Treasury drawer in 2010 joked, there really is no money left now. Except, apparently, for Oasis.

Which brings us to the false idols of politics. Since personality, rather than policy, became the political trump card it’s inevitable that we would get Trump. Or someone like him.

An engaging question arises as to how the two Labour PMs were and are equipped spiritually for the times in which they lead. The spiritual state of Oasis is a linked matter, which I’ll get to in a moment.

Blair’s government famously didn’t “do God”, though it turned out he did privately, converting to his wife’s Roman Catholicism almost immediately after leaving office in 2007. Perhaps he had a priest hole in the family flat above Number 11. He consistently denied claims that he prayed with American president George W. Bush before or during the Iraq war.

Starmer doesn’t do God rather more formally, as a self-declared atheist. We can conclude that prayer is not a resource that he needs as he faces a more challenging immediate political future than Blair’s early days as PM. I only wish Starmer would appear in a T-shirt with the slogan “No Prayer, Like Blair”.

Arguably the spiritual life doesn’t matter for any leader. The job of PM is all about simple competence, mostly in money management. To paraphrase the pithy quip from Bill Clinton’s 1992 presidential campaign (on which Blair’s so strategically relied), it’s all about the economy, stupid.

So the worship is of mammon rather than God. Here the current and former PMs might care to track the career trajectory of the two Lords Gallagher of Oasis from Blair to Starmer. In 1997, they were in their pomp as authentic Mancunian working-class heroes. Today, the brothers have to make up and go back on the road to subsidise Noel’s £20million divorce settlement. A rather different demographic.

There’s perhaps no great political lesson there for political leaders, but it’s almost Faustian in its scope. See what happens when you bank only with mammon.

Which brings us to the false idols of politics. Since personality, rather than policy, became the political trump card it’s inevitable that we would get Trump. Or someone like him. It doesn’t matter, to his core vote, what he’s done or what he’s incapable of doing, Only who he is. He’s an idol, a cult image, a golden calf. Trump’s bull is sacred, whatever he does.

The UK thankfully hasn’t had one of those yet (though there were warning tremors in Boris Johnson). But it’s telling that Blair is said to have developed a messianic tendency after his premiership’s early intervention in Kosovo during the war in former Yugoslavia. At the termination of hostilities, crowds there sought to touch his clothes as he passed.

Strange that being touched should make him feel untouchable. But that’s the way of messianics. It can be the same with rock & roll stars. Live music, at its best, can offer a transcendent sense of communion. At its worst, it’s the adoration of stage idols that sends them a little mad. Or mad for it.

Oasis’s Liam Gallagher isn’t in this together with his fans anymore. He’s turned into a Marie Antoinette figure online in response to the ludicrous prices charged to watch him from Ticketmaster. He substitutes “Shut up” and “£100,000 kneeling tickets” for “Let them eat cake”.

He and his brother are warnings of what can happen in so short a period between the ascendancy of Blair and that of Starmer. True, pop stars aren’t as dangerous as someone such as Trump. But they do show us that we get both the entertainers and the leaders we deserve.