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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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Wildness
18 min read

The Eagle - a new short story

A fable.

Theodore is author of the historical fiction series The Wanderer Chronicles.

An eagle wheels against a purple stormy sky cut by lightening.
Jason Hudson on Unsplash

I dreamed of an eagle soaring high over a verdant valley. The sun blazed and splintered into a thousand sword-points of light, spilling with joy and gladness over the slopes and streams, over the hanging woodlands, and the orchards growing there and carpeting the floor.  

There was gladness in the heart of the eagle too. The valley was good. The valley was secure. With his piercing eye, he kept watch over his brethren. The animals of the valley fed and met and played and slept. The smaller birds swooped and spun in the barmy air far below him. All was well.  

And then to the east, to the east his eye was drawn. A cloud rising in the east. A change was come. Black billows, dark with portent, rising skeins of thick grey smoke. The land that way rose to an upland pass. The little valley came tumbling down from its heights. To the north, a jagged range of peaks, black and sharp as wolf teeth. To the south the same, shutting the valley in. Protecting its flanks. But by the eastern horizon, a way did lay open. And now the eagle saw burning flames. A fire raging, devouring flame racing over tree and scrub, tearing at the grass, a snarl of heat and swirling smoke. A consuming fire. An angry fire. A fire fuelled on resentment, blown by the winds of hate. A fire hungry for the valley and everything in it.  

The gladness in the eagle’s heart vanished in a moment - as if it, too, had been burned to ash in the raging blaze. The eagle watched the flames claw their way down the upland spurs of the valley. Disquiet now ruled in the place of gladness. His piercing glance dropped to the animals frolicking in the valley below, but they saw no danger. They knew no danger. They knew nothing but that he would tell them was to come. 

At last his cry broke from his throat. He looped back on the burgeoning wind, circling round the better to send his shrill warning spiraling down to the verdant floor and its folk. But to his dismay, not one looked up. Not one took heed.  

And now to the west his gaze rose. And his disquiet turned to horror. 

For there the mirror to the eastern pass did lie. Smooth, lower, a lesser rampart of earth and rock. The easier to scale. And seeping, creeping over its worn shoulders came a foul and noxious fog. Purple of hue, odious even to the eye. Yet the eagle needed no telling that it would be fatal to the lungs. A cloying, lying, coiling fog, slick to the touch, choking and blinding in its confusion. And something in the look of it told the eagle it was yet more than this. A maddening fog, a self-devouring, self-immolating poison, which once inhaled could nevermore be expelled. 

Once more, his cry rang out around the four walls of the valley. Once more, the animals below did not look up from their play, from their busy, busy play…. 

Seeing their oblivion, he fell on them with such force and directness that he risked his own neck. For only with skill and strength could a bird of his dimensions flare out from such a death-dive. His throat burned in his effort to scream his warning. But only at the last did any of the valley-folk look up. 

Those that saw ducked their heads and took fright to see this terrible sight. The little ones especially, the soft-hearted ones, the natural prey of great predators like himself. Wails of fear broke from the lesser throats. They cringed and hid and some even were angry. The mothers rushed to their young. The fathers bristled and ready themselves for a fight. Shocked and afeared by this sudden threat to the peace of the valley, and the disturbance to the busy plans they had for their day.  

When the eagle pulled up and neatly landed on the peak of a small outcrop that broke from the valley floor, his voice was hoarse from his warning cries. The animals were bolder now, seeing the flash of danger past. And as the tide of fear receded in their hearts, seeing the threat was not as they feared, it left behind sharp stones of anger and indignation.  

“What do you mean by this horrible screaming?” the first of them did demand. “You puffed up popinjay! You scare the life out of us with your terrible aspect and the dizzying violence of your approach.” 

“It is only of necessity,” he began, breathlessly, “on account of what I saw—“ 

But he was not allowed to finish. In one united and sudden clamour, all the animals, emboldened by the first, unleashed their fear (together with their indignation) on him, so that none could truly have heard what any of the others had to say, or even what came forth from their own mouth. 

“Renegade!” 

“Bully!” 

“Impostor! Attacker!” 

And there was worse. “Murderer! Villain! Terrorist!” 

“There is blood on your hands!” 

“But I tell you - from my great height, among the peaks and the thinning air, I saw something none of you can see,” he pleaded anew. 

Now the clamour turned to jeers. “Oh, you saw, did you? You who see so much indeed!” cried the first of the animals. He was a fox who always liked to have the highest place in any council. And yet had not, even now, gained the trust of the eagle’s heart. “You always did think yourself superior to us earth-bound folk.” 

“That thin air has gone to his head, if you ask me,” said the king buck of the forest. “What he mistakes for clarity is nothing better than a spell of dizziness. Besides, no one asked him to look out for us, did they? We have wisdom enough for ourselves. We know our world. And look to ourselves as needs will be.” Here the noble-looking stag gave the twelve points of his antler-crown a flourish.  

“Get away, you hook-beak menace!” cried a creature from the crowd.  

“Stop stirring up trouble, you screeching flapper,” scowled a second. 

“Back up to your lofty skies, you preening prig,” sneered yet a third. And soon all the animals were hurling the worst of their insults at the eagle, seeing he was in no hunting mood after all, and glad for a chance to vent the spite they felt for many little things that had nothing to do with him. 

Frustrated at their stubbornness, the eagle glanced to the skies again. So often he had used his sharp eyes and sharper talons to win his way, but seldom his voice. He was not used to seeking sharp words withal to defend himself from such a barrage of slur and rejection. He looked to the skies again, always the place of solace for him. And there he saw but faint traces of the fire raging high and to the east. But then something else caught his attention. Some great shadow casting a gloom upon the air. In a moment, the caterwauling crowd was forgotten, and now in urgency, he beat his wings once more, his spiralling flight carrying him back up to airy reaches far above the valley, just as the valley-folk had scolded him to do. 

Only he went not at their urging, but in heed of a still more pressing call in his own heart. A dread of what could cast such a shadow, even through all the bright flames of the wild furnace that he had spied. He turned his head to the east, his eyes reaching and reaching deep into the billowing smoke and fire. And then he saw it. And his blood ran cold as the ice-water tumbling out of the hills into the valley below. 

A monstrous figure strode among the fire and the smoke. Tall as ten oaks from toe to head and with a flaming sword raised aloft. The monster had the body of a giant, and yet its head was that of a bull, double-horned, and snorting great angry blasts of flame from its nostrils, its eyes green and flashing like emeralds that held the sun. Its huge limbs swung with grim purpose as it drew closer, striding down from the upper reaches of the valley. Hulking shoulders with bulging veins that glowed red and gold and copper, as if the hot blood of hate were like to burst clean out of its char-black skin and shower the land with its poison. 

For a moment, the eagle’s steady gaze faltered, feeling some unfamiliar tremor through his heart. Fear. For so it must be. Fear so deep he knew not where to turn. 

But then his wits caught up with him at length. And at the sound of a long and sibilant sigh on the breeze from the west, he banked that way now. And to his horror, he saw thence too came striding a figure wreathed in the purple fog. Not so large as the bull-headed giant, and yet unlike that titan of shadow and flame, this one possessed some strange inexorable draw, so that the eagle found once his eye had settled on its shimmering shape, he could no more have torn it away than he could have stopped the earth from its turning. 

While the eagle would have flown far from the fiery giant, the shifting silver and purple shimmer on this other was in certain ways more terrifying. Its head was crowned with dark jewels over long and flowing silver-white hair. Its eyes were simpering and womanly in their glance, yet something hard and cold lurked in their centre, too, even as a mirthless smile played over a curved and shapely mouth. As if the giantess held some joke over all the world, some secret which amused her only. Beauty corrupted, pleasures perverted, good things turned to wicked. These things and many more the eagle read in her wanton gaze. And as she walked the purple fog swirled around her silver-slick limbs, clothing in a way her modesty, yet inviting all the same. And the eagle felt the twin goads of revulsion and yet its mirror. And only by chance noticed that even from so far, the scent on the fog, both sweet and yet putrescent, was putting lead in his eyelids. For a moment, he felt his head loll in weary sleep, a thick narcotic lethargy leaching all life from his steel-strong sinews and suddenly he found his flight was stalling, stalling… and only by the roar of the rushing air did he realise he was falling to the crushing earth.  

With force of will he had never before had need to call upon, he wrenched his wingspan to its fullest stretch, and braced his mighty shoulders to catch the air and snatch him from his doom. At least for now. Shocked at his own weakness but recovered, he now flew like lightning-bolt, arrow-straight, to the valley meeting point, whence bare moments before he had been expelled. 

“Alarm! Alarm!” he cried again. And this time, he would brook no silencing. “Alarm! Alarm!” he shrieked, with the last gasp of his breath. 

“You again,” went up the cry. And much that was far worse. “Did we not rid ourselves of you once and for all time?” barked the fox. 

“You solitary creature, go back up to your aerie,” declared the noble stag. “It is with good reason the Great Maker gave you a hermit’s home far from the valley floor. For in his wisdom, he knew none of us earth-bound folk could abide your company. No, nor should we have to.” 

“That may be true,” confessed the eagle. “But heed me all the same, just for this moment and but a few more. I see you from my height above and though you care not for me, I have long learned to care for you. And just as you say, I abide in the Maker’s will. He has given me eyes to see and a lonely nature, whereof I soar on the wind He breathes, and far-seeing I may behold things which escape the eyes of you lower folk.” 

“Lower!” jeered the wolf. “Hark at him! There all the truth is known. He thinks himself a higher breed to us forest-dwellers.” 

“Nay, far from it,” pled the eagle, seeing he had misspoke. “I come not to bandy words but only to warn that you may flee the coming purge.” 

“What purge, you feather-brained scoundrel?” 

“Death descends on all of you who dwell in the valley-floor,” he cried, his voice shrill. “A poison out of the west; dread fire from the east. They burn, they choke, they lay to waste all that lies in their path. And they mean to meet here in this green valley to some foul purpose, I am sure.” 

“Peace now, my brother of the wing,’ said a new voice, and though ready to shout down the eagle for their own part, all the gathering of animals turned to see one who perhaps had been there all this time. Yet only now had spoken up. It was the owl, sitting calm and moon-eyed, surveying the scene as if such fractious business barely concerned him. “Peace, I say.” It was as if there was a gentle, coaxing smile in his voice. “I, too, have flown higher than these other valley-dwellers. I, too, have felt the winds upon my beak. In all that I have seen; in all that I, in my wisdom,” - here he looked around as though to say, ‘does any here doubt it?’ - “have ever known, there is no true danger come to fall upon us. None but which we stir up among ourselves. Through misunderstanding, through a lack of love. Come, my brother of the wing. Admit thy mistake. It is no fault of thine. Imagination is a tricksome friend, I know. And indeed, who can truly say what they have seen at such heights? The fault would merely be not to admit to thy mistake. I tell you in all my journeying, I have seen nothing of these threats. Take counsel from wiser, older, gentler souls.’ 

“Nay,” insisted the eagle. “The difference is this. You fly by the light of the silvered moon. I fly by the sun. You see but by the reflected light falling upon a dead and mute circle of rock. I see by the light of the burning sun itself. Tis not the whole, you see, but mere shadows and play of darkness. I ride the wind, and see what the wind would show me.” 

At this, the smile in the owl’s voice leached away. “The hot wind of the fire you feel is the wind of the great eternal spirit calling you to love all of creation with a fiery love. Calling you to a warmer love of your fellow creatures. And as for the fog, you have it wrong there too, sir. ’Tis the sweet scent of compassion you smell, calling you to a compassion for all those things you do not yet understand―” 

“I understand them well enough. Well enough to perceive the danger―” 

“Silence!” the owl abruptly shrieked. “I had not finished speaking.” And here, the glare in his moon-eyes became sharp as flint. “Your hard days on the wing have hardened your heart. The thin air up there has made your heart cold with lofty conceit, and distanced from the rest of the Maker’s world. Truly you see only your own great capacity to soar, and think it makes you far-seeing, while the rest of us are blind. No, it is not by light that you see, but by ignorance. Your mind is closed because you do not open it to other ideas and influences, as I do. It is I who truly loves these valley-folk. I who converse with them, and learn from them. I who never judges them.” 

“But the fire!” cried the eagle. “But the fog!” 

“Silence!” returned the owl, and this time his voice carried real authority. “You say you see only by the sun, do we all not live under that same sun? Nay. Be humble now. Be silent for a time. Learn from those older and wiser valley-folk. Be silent, I say. We have indulged thy fanciful whims too long.” Here, the owl’s domed head swiveled in the direction of the stag. “Your grace, it is time for a little discipline. We winged creatures play our part, but the Maker has ordained thee king over us. This is known. The Maker means for all of us to submit to the sting of discipline now and then. Such may do us good.” He turned back to the eagle, and there was a sarcastic edge now in his voice. “Or do you consider yourself too good even for that? For such as the rest of us must endure?” 

“No, no, a thousand No’s!” replied the eagle impatiently. “I take my discipline when discipline is what I need. But see, even now, the towers of smoke rising in the far heights. Look, can you not see?” He gestured eastward with his great wingspan, but most of the gathered animals merely laughed at his madness. Any who did happen to glance that way had not his vision and saw nothing but the azure sky. “If it is falsehood I see, then I would gladly see myself corrected. But, by all the stars, I am not lying. And more, I see it true!” 

“He is a lost cause,” said the sly fox, for he had never much cared for the eagle. “Come, we waste time. Let’s get to the disciplining, and right quickly. I have an idea this one may lose patience, and then see - the sharp hook of his beak. The razor points of his claws. What mischief might he play with those when he chooses? See these little soft ones hereabout.” He gestured to the woodland creatures, the rabbits, the shrews, the squirrels. “He is a danger, this one. To every decent forest-dweller. Aye, and even to himself, I dare say. Look at them! Poor lambs - quite terrified out of their wits, they are. Terrorized half to death!” 

And it was true - there were some of them did seem alarmed.  

“Quite right,” agreed the stag. “Well, there be nothing for it but to teach the eagle his lesson.” And before the eagle had thought enough for his own safety and not the others, there was a guttural growl beside him, and suddenly the weight of the wolf’s claws upon his back, the hot billow of lupine breath as iron jaws closed around his neck. 

“To the punishment stone!” the fox cried heartily. “We’ll make of this one a milder creature before the sun is set!” And at once all the crowd of them took up his cry.  

The eagle found himself borne upon the tide of anger, mauled and spat at and scratched. But the wolf was strong, and dragged him with relentless might to the place of his ordeal. 

And yet, all the while, his fear was not for himself. No, it was still for his fellow creatures. For now, he could even smell the rank sweetness of the giantess’s noxious poison. For now, he could even hear the crack and spit of the rushing fire tearing through the forest. But the other animals were too distracted. Too fixed upon his own fate, and what they would see done to him. 

And a terrible lament rose within his heart: that he had failed. That seeing, he had yet wrought no good. His moment had come, perhaps the one moment for which the Maker had given him life, had given him wings to soar and eyes to see - but all he had won was his own demise. And then he thought, “So let it be. It is no more than I deserve, after all.” 

It is terrible to relate what those gentle, placid valley-folk did to the eagle in those following moments. Once they had bound him and raised him up for all to see, the fox and the wolf went to work. They pulled from his golden feet those proud talons, each and every one brandished and mocked and tossed down among the baying crowd. They bit him and tore out mouthfuls of feathers to spit back in his face. They broke and snapped right off the sharp hook of his beak, yelling with glee that he could hurt no other creature now.  

They worked on him for a long while, so that the sun had fallen low behind the western pass, and the sky was purpling like a spreading bruise across the heavens.  

“Better cut out his lying tongue,” said one. This was the owl, whose moon-eyes seemed greener somehow in the fading light. “The better to avoid discord among the good peace-loving folk of the forest floor.” At this, went up a rousing cheer. The idea seemed pleasing to them all. And so his tongue came out, and was thrown down as had his other parts. 

The eagle endured his punishment without a sound. Although inside his heart was weeping. But now he could never tell that he wept not for himself, but for all of them.  

“One more thing,” declared the noble stag, looking regal and solemn, his crowned head held high and strong. “His eyes must go, for it was they that caused all this trouble. After that, clemency. For we are not cruel of heart. We merely wish to preserve the peace and order of the valley.” 

“Allow me,” sniggered the fox to his partner in the punishment, and the wolf stepped graciously aside. 

The eagle looked not at his tormentors in that moment. Instead, his far-gaze searched one last time the blackening skies. Searched for an answer to the fire and the fog. Searched the heavens for some single shard of hope. For he knew now, no aid would come to his kindred creatures from among themselves. 

The fox flexed a claw. Flashed it before the eagle’s gaze. But he did not care to look at that. And the next moment was one of searing pain. One eye now was gone. But he minded it not. He could not cry out in any case, for his tongue lay severed in the mud. No, he still looked keenly upward with the last eye left to him. 

And then - as the fox made much of this final climax to his work, japing and frolicking before the crowd - he saw something. He saw a wonder. For though the sun had long set, some other light now appeared in the gloaming. No rising sun was this, for the light came not from the east, not even piercing through the smoke that now stained the night far above the heads of the foolish creatures below. No, the light rose in the north. Why? How? the eagle pondered, while the fox still milked his crowd. 

A second sun rising in the north, light building and building, though by now it should almost be night. Splinters, shards of colour, white and gold of searing brightness, like an army pouring over the high ridge of mountain peaks, the bulwark to the verdant valley. And with the light he saw, in the last seconds of his sight, a light that was all hope and power and blessing and glory and goodness and beauty.  

And though he knew that these next moments would be the last he would ever see, I saw in my dream that he was at peace. Because, though he had failed, his heart was certain that the light would not.  

A new light was rising in the north. A new sun had come. 

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