To attain happiness and to avoid mood disorders, which should we pursue

The messages of modern society are all too familiar to us: buy more, eat more, sleep more, take more pictures, and care less about the effects of our actions. We are encouraged to maximize pleasure while avoiding anything that inconveniences us. We cloister ourselves with our material goods and social media habits, promoting self-centeredness. This induces a fluctuating happiness in which phases of pleasure and displeasure repeatedly alternate, which can result in various mood disorders and has been linked to decreases in well-being. In this article, we are going to analyze self-centeredness and its consequences and also interpret its role in a variety of mood disorders and various areas of life.

The Self-centeredness / Selflessness Happiness Model (SSHM) is a theoretical model proposed by Dambrun et al. in 2011 [1]. This model represents different sorts of happiness that are dependent upon the self, particularly the structure of the self. They claim that self-centered psychological functioning derives from how someone perceives themselves and the belief that they are powerful, permanent, and independent. This functioning causes fluctuating happiness and afflictive affects which are also the roots of many mood disturbances. This is heavily contrasted by the perception of the self as flexible which leads to selfless psychological functioning and is a crucial factor at attaining more authentic/durable happiness [1].

After proposing this model, Michael Dambrun conducted a study in 2017 that built upon this model. According to this research, self-centered psychological functioning allows individuals to fluctuate between joy and sorrow, a vacillation that results in afflictive affects. Conversely, selfless psychological functioning gives the individual more emotional stability and feeling of harmony with the environment. They tested these hypotheses in two studies consisting of a heterogeneous sample of citizens (n=547). Analyses of these two studies indicate that self-centeredness (measured by egocentrism and materialism) and selflessness (measured by transcendence and connectedness to others) were two different psychological constructs rather than strict oppositional ideas.

In addition to showing the distinct functioning, these analyses also revealed that self-centered functioning is significantly associated with fluctuating happiness that is the root of afflictive affects. However, selflessness is linked to authentic/durable happiness, which is the result of perceiving the self as flexible and harmonious with the environment and universe. These associations are mediated by distinct psychological processes. For self-centeredness, afflictive affects play a crucial role in the correlation with fluctuating happiness in self-centered individuals.

In contrast, selfless individuals attain authentic-durable happiness that is partially mediated by emotional stability and perceiving themselves as harmonious with others and the universe (2). In our view, individuals who are more concerned about their happiness are more susceptible to mood fluctuations and disorders, while individuals who have more significant interest for the happiness of others attain more robust and durable emotions.

These studies also suggest that self-centeredness causes problems in society; as such, we will to analyze the results later.

Fluctuating happiness in the self-centered individual

The idea of the self as a real, permanent entity with its distinct boundaries results in self-centered psychological functioning. Laborit’s [3] study suggests that each organized structure in the form of an entity seeks gratifications that positively reinforce it and avoids things that risk its homeostasis. The hedonic principal is a major ruler in self-centered functioning and is deeply associated with egoism, egocentrism, an exaggerated importance given to the self, and ego inflation (through material possessions, for example) (e.g. Higgins,1997) [4].

The hedonic principle and its associations are also correlated with some personality disorders, particularly narcissistic personality disorder [5]. This principle induces the individual to focus on attaining pleasure and avoiding displeasure. Feelings of temporary happiness, joy, and gratification are the result of impulsive actions for attaining pleasure and avoiding displeasure. However, only the presence or absence of certain stimuli reinforce the individual and only give temporary pleasure and happiness (Wallace & Shapiro, 2006 [6]). The experience of pleasure depends on circumstances, is an unstable condition that may soon become neutral or may be displaced with displeasure. (i.e., hedonic adaptation, e.g., Brickman, Coates & Janoff-Bulman, 1978; Lyubomirsky, 2011 [7]). Focusing on attaining more pleasure and avoiding displeasure lead an individual to recognize and realize the impossibility of attaining valued objects, durable pleasure, and cause them to repeatedly vacillate between pleasure and displeasure and the arising affects such as frustration, nervousness, anger, hostility, or jealousy, all of which damage their well-being and health (e.g., Miller) [8]. Contrarily, altruism, also called selflessness or focusing on others’ happiness, is significantly associated with a higher quality of well-being, health, and longevity [9].

Self-centeredness cause depressive symptomatology

A self-centered lifestyle may cause not only mood disorders but also social problems that also increase the prevalence of different mood disorders. Loneliness is a big problem in contemporary society, though we mostly live in crowded cities adorned with skyscrapers. As the title describes, a study conducted in 2017 shows loneliness and self-centeredness have a reciprocal effect that cause depression and various mood disorders, as well as health and social problems [10].

Loneliness increases not only the motivation to repair or replace deficient social relationships, but also the implicit motivation for self-preservation. John T. Cacioppo et al. reported a cross-lagged analysis of 10 waves of longitudinal data (n=229) on loneliness and self-centeredness (as gauged by Feeney and Collins’s measure of choric self-focus) in a representative sample of middle-aged and other adults. Loneliness increases the implicit motivation for self-preservation, and loneliness in the current year anticipates self-centeredness in the following year beyond what is reasoned by current-year demographic variables, self-centeredness, depressive symptomatology, and overall negative mood and emotions. Their study also revealed that self-centeredness in the current year foretells loneliness in the subsequent year, a reciprocal relationship that could potentially contribute to the maintenance of loneliness [12].

Generation Me and its consequences on human mood

An increase in narcissism with some indicators of increased self-focus in Americans born after 1970 leads authors to describe that generation as “Generation Me” [5, 12]. This narcissism and self-focus are also intimately related to self-centered psychological functioning since both are formed by an exaggerated importance given to the self, ego-inflation, and so on. We think self-centered psychological functioning may also be considered as a part of this dynamic, thus being a member of Generation Me may be one of the major risk factors for narcissistic personality traits and disorder [2, 12].

Narcissistic personality disorder (NPD) is a personality disorder in which there is a long-term pattern of abnormal behavior characterized by a grandiose self-view, unrealistic sense of entitlement, exaggerated feelings of self-importance, and a lack of understanding of others’ feelings [13, 14]. Narcissists who consider themselves to be superior to others, and also have unrealistic expectations for the future, become angry and aggressive when in trouble, take more resources for themselves and leave less for others, and value money, fame, and image over family, helping others, and community. Though narcissism has some benefits, like public speaking, it has lots of adverse effects on human mood and behavior and comorbidities with psychological disorders [15].

Selfless functioning

The principle of “harmony” has a primary role in the selflessly functioning individual; harmony directs all mental activities (conation, motivation, attention, emotion, cognition, behavior). Harmony and emotional stability are associated with empathy, benevolence, compassion, and deep respect; all of these have a beneficial effect on behavior and a reduction of psychological distress [2]. Many studies have revealed the results of altruism on happiness and health and have consistently found a deep and intimate connection between altruism and current and future health and well-being.

References

1. Dambrun, M., & Ricard, M. (2011). Self-centeredness and selflessness: A theory of self-based psychological functioning and its consequences for happiness. Review of General Psychology, 15 (2), 138-157.
2. Dambrun M. Self-centeredness and selflessness: happiness correlates and mediating psychological processes. Hung T-M, ed. PeerJ. 2017; 5:e3306. doi:10.7717/peerj.3306.
3. Laborit (1979) Laborit H. L’inhibition de l’action: biologie, physiologie, psychologie, sociologie. Edition Masson; Paris: 1979.
4. Higgins (1997) Higgins ET. Beyond pleasure and pain. American Psychologist. 1997; 52:1280–1300. doi: 10.1037/0003-066X.52.12.1280. [PubMed] [Cross Ref]
5. Jean M. Twenge The Evidence for Generation Me and Against Generation We Vol 1, Issue 1, pp. 11 – 16,First published date: March-01-20131177/2167696812466548
6. Wallace & Shapiro (2006) Wallace BA, Shapiro SL. Mental balance and well-being: building bridges between Buddhism and Western psychology. American Psychologist. 2006;61:690–701. doi: 10.1037/0003-066X.61.7.690. [PubMed] [Cross Ref]
7. Brickman P., Coates D., Janoff-Bulman R. (1978). Lottery winners and accident victims: is happiness relative? J. Pers. Soc. Psychol. 36, 917–92710.1037/0022-3514.36.8.917 [PubMed] [Cross Ref]
8. Miller et al. (1996) Miller TQ, Smith TW, Turner CW, Guijarro ML, Hallet AJ. A meta-analytic review of research on hostility and physical health. Psychological Bulletin. 1996;119:322–348. doi: 10.1037/0033-2909.119.2.322. [PubMed] [Cross Ref]
9. “altruism (n .)”.Online Etymology Dictionary. Douglas Harper. Retrieved 19 September 2014.
10. Cacioppo JT, Chen HY, Cacioppo S. Reciprocal Influences Between Loneliness and Self-Centeredness: A Cross-Lagged Panel Analysis in a Population-Based Sample of African American, Hispanic, and Caucasian Adults. Pers Soc Psychol Bull.2017 Aug;43(8):1125-1135. doi: 10.1177/0146167217705120. Epub 2017 Jun 13.
11. Twenge JM. Generation Me: Why today’s young Americans are more confident, assertive, entitled—And more miserable than ever before. New York: Free Press; 2006.
12. PubMed Caligor, E; Levy, KN; Yeomans, FE (May 2015). “Narcissistic personality disorder: diagnostic and clinical challenges.”. The American Journal of Psychiatry. 172 (5): 415–22. PMID25930131. doi:1176/appi.ajp.2014.14060723
13. Diagnostic and statistical manual of mental disorders: DSM-5(5th ed.). Washington [etc.]: American Psychiatric Publishing. 2013. pp. 645, 669–72.
14. Cai H, Shi Y, Fang X, Luo YLL. Narcissism predicts impulsive buying: phenotypic and genetic evidence. Frontiers in Psychology. 2015;6:881. doi:10.3389/fpsyg.2015.00881.
15. Diagnostic and statistical manual of mental disorders: DSM-5(5th ed.). Washington [etc.]: American Psychiatric Publishing. 2013. pp. 645, 669–72.

Open heart surgery is performed after putting the patient to sleep under a general anesthetic. The chest is then opened by the surgeon, and the heart is temporarily bypassed or deactivated for the duration of surgery (although in some new techniques like beating heart surgery or minimal invasion heart surgery, the operation is possible without deactivation of the heart) During this period the functions of the heart are performed by an artificial lung mechanism called the heart-lung machine (cardiopulmonary bypass machine). Performing surgery on a working heart cases where there is no facility for beating heart surgery would be like trying to repair the engine of a car while it is in motion. This is why it is necessary to temporarily prevent the functions of the heart during the operation, which requires great care and accuracy.

Stopping the heart

During this procedure the patient is connected to the machine, thin pipes called cannulae are inserted into the main veins which lead to the heart, and thus the blood which goes to the heart is directed into the heart-lung pump, fed with oxygen, and then redirected into the body. Preventing the function of the heart is not a very difficult process. When the heart-lung machine is activated and the blood is cooled and redirected into the blood vessels, the body temperature is reduced to below 30°C, and this lowers the heart rate and assists the heart to stop functioning. The actual stopping of the heart is performed by feeding a serum containing a concentrated solution of potassium ions into the coronary artery, which feeds the heart muscle. Potassium ions are normally found in the human body but in a fixed proportion; potassium is an electrolyte which, if increased, causes a defect in the heart’s rhythm and can lead to ceasing of the heart function. Feeding the coronary artery rapidly with a rich potassium solution causes the heart to stop within a few seconds and allows the surgeon to perform the operation on a non-functioning, motionless heart.

The heart should not be stopped from functioning for a long period, even if the heart-lung pump is performing the function of the heart successfully. Under normal conditions the pump cannot perform the whole duty of the actual heart and lungs. When the body temperature is reduced, there is a reduction of functioning in many organs of the body to such an extent that they almost stop working, especially the brain. This means that every organ freezes and if the patient’s pulse were taken within this period, they would be assessed as dead.

Restarting the heart

To restart the heart following the operation a reversal of the procedure performed at the beginning of surgery is necessary; the temperature of the body is increased to 36.5–37°C again with the help of the heart-lung pump, and at the same time the amount of potassium in the blood is reduced to a normal level. This is usually executed by ensuring the normal function of the kidneys which discard the potassium from the body. This is when the function of the heart is monitored closely because there is a reversal in the process of inducing low body temperature and the excess of potassium which caused the heart to stop. In other words, the barrier which stopped the flowing river is removed; therefore, according to the laws of physics, the trapped fluid should flow again at great speed, and although following surgery the majority of hearts do begin to function again when these procedures are performed, there is unfortunately no actual guarantee. There may be certain complications or even causes which we have not yet discovered, in which case an electric shock of 10–20 joules is delivered directly to the heart muscle to encourage it to function normally. If this is unsuccessful, medication such as adrenalin, which induces the functioning of the heart, is given to the patient. If, following these repeated procedures, there is no effect, and, regardless of all the effort, the heart does not function, then everything is performed again from the beginning, including the operation. But there is always the possibility that the desired result may not be achieved. Human beings always face the prospect of death in daily life, and although there is a very slim chance of death, with such a big operation there is always the possibility.

The result

We are normally totally unaware of the rhythmic incidents, a combination of great harmony, occurring within our bodies. Even breathing, a necessity for every living creature to stay alive, is not an action which we activate and continue of our own will. Sight, hearing, hunger and senses are acts of nature over which we have little direct will or power. Nevertheless, they are all events which we can only describe as divine miracles and what a great blessing it is that none of these complex functions of our bodies have been left to us humans.

Dear Peter, in order for you to understand me better, keep in mind a basic principle about the functioning of living organisms-they all depend on energy use. If no energy enters a living system, then no metabolic activity, no life function can be carried out. Think about a car without fuel. No matter how great the car is, it simply won’t work without any fuel in the tank. The human body is no different. Plants and animal products which people consume as food provide the body with fuel. However, you cannot make use of the energy in nutrients in the form in which you take them in. They need to undergo a process so that they become usable fuel for us, like crude oil being refined into gasoline to make a car work. This is roughly what my duty is. Without my functioning, you would be devoid of the energy to move a finger, and eventually die. Do you understand now how important a set of pipes I am? You just think that I look like a soft and hollow canal and misjudge me as simple. Well, I know that I don’t have such complex parts as the heart, lungs, and kidneys, but I’m created as a perfect work of art in plain design.

Although the hoses you use for watering your garden wear out and break in a relatively short time, my walls made of four layers keep functioning through a lifetime without any holes unless I contract a disease like cancer. My outer layer consists of a durable connective tissue, the next one consists of two sets-one horizontally and one vertically laid-of straight muscles, the next layer under that consists of glands spread in a soft connective tissue, and the innermost layer is the epithelial mucosa where the actual absorption takes place.

Now, let’s come to how I achieve digestion, one of your body’s vital activities. Actually, there is no place for me to take any pride in it; I’m just doing as I am ordered. Anyway, the complex processes occurring within my simple-looking walls are just fascinating! Every one of my cells producing the particular enzymes to break up each nutrient is like a separate factory. Some of these enzymes break proteins into different levels of peptides, some break the peptides into amino acids, some break fats into fat acids and glycerin, whereas some break carbohydrates down into glucose. All of these particular enzymes have their sub-branches within themselves. For example the enzymes breaking down fructose (fruit sugar), lactose (milk sugar), and starch are all different. In order for the enzymes to be effective, my inside needs to have the right pH level; the enzymes work in very sensitive conditions. To give you an idea, the enzymes in the stomach-which happens to be the second station the nutrients are destined for before they come to me-work in an acidic environment (pH: 2.5–3). In my case however, basic fluids are secreted and this strong acidity is neutralized for my enzymes to work.

My overall length is around 8.5 meters from the first entrance at the stomach to the last exit. The small intestine is nearly 7 meters long and the remaining 1.5-meter section is the large intestine. Although the small intestine is the longest section of the digestive tract, it is still called small since it is smaller in diameter than the large intestine.

The small intestine is also divided into three sections. The very short (25–30cm) and relatively thicker part right after the stomach is the duodenum. Bile-which works like detergent and facilitates breaking up fats-produced by the liver and digestive enzymes from the pancreas enter the duodenum. Thus, the nutrients are digested one step further and pass on to the second section (jejunum) and then to the third (ileum). You cannot easily tell apart these final two sections. As blood circulation is more intense in the second section, this section is more reddish and the contractions here are faster and stronger. The third section is narrower and has thinner walls. The blood circulation here is relatively lower and the movements are more limited. The thin membrane of connective tissue (mesentery) around me which attaches me to the abdomen wall and prevents me from knotting up is relatively fatty in this third section.

My most vital parts are the villi-tiny nipples covering the curly surface of my inner wall like a carpet. Shaped like the fingers of a glove, villi yield an enormously large inner surface. They contain a net of capillaries and lymph canals. In addition to the glands secreting the enzymes to break down nutrients, the secretion of certain glands protects me against the destructive effect of the stomach acid. Some cells secrete mucus for lubrication and protection of the passing nutrients. As some cells of the villi secrete digestive enzymes, some of my cells absorb the nutrients broken down until the final phase and pass them to the bloodstream.

Peter, how can some guys mistake such a splendid mechanism as a work of unconscious nature? What I’m telling you about is a manifestation of such great knowledge and might that it leaves you spellbound. I know the characteristics of foods, I know about the other organs’ needs, I adjust various enzymes and an absorption system, I fit them in a limited space… In addition, I do all these in the most ideal way, without any waste or flaw! C’mon Peter, can all these happen by themselves? Now, if I were to start telling everyone about the absorption mechanism in detail, they would probably see those cells as divine beings! The One who assigned special carrier molecules and a system for every nutrient molecule, has placed two transfer systems as blood and lymph pathways in every single one of those millions of villi! The blood pathway passes amino acids, water and salts into the blood directly, whereas the lymphatic pathway absorbs fats to pass them to the blood indirectly. After absorption, the nutrients become a property of the body and they are carried in the bloodstream to all the cells waiting for them in need.

Well, what about the waste then? Since everything you eat is not beneficial and usable, and some things are even toxic, they should be disposed of as soon as possible. The unabsorbed remnants are still too watery to be disposed of; sending them away as they are will be a waste of water and minerals. But don’t worry, everything is perfectly planned! Now the large intestine comes on duty. In this 1.5-meter section, the water of the waste and certain minerals are absorbed, and the waste solidifies. The large intestine is also divided into three sub-sections. The pouch connected to the junction of the small and large intestines is named the cecum and there’s the appendix at its end. This end sometimes festers and you have to have it removed in an appendectomy. Now, there’s this made-up story that the appendix was once longer since your ancestors only ate plants, that it has evolved into a shorter form for I now eat more meat, so on and so forth… Bah! Nothing is created in vain, Peter. If it didn’t have a duty, it simply wouldn’t be created. Only after some time did it dawn on them, after researchers proved that it is so necessary, that as a lymphoid organ, rich in blood vessels, it produces antibodies to fight the germs which somehow make their way into me.

The rest of the large intestine is the colon and the rectum. The mucosa covering my inner surface is rather smooth. It secretes mucus to facilitate the removal of waste. In addition, useful bacteria are made to work in abundance in the large intestine for your needs. These bacteria synthesize the group B vitamins like B12, thiamin, and riboflavin, along with vitamin K. You see how all the processes are carried out so splendidly? If it weren’t for vitamin K, your blood would fail to coagulate, and the slightest injury to your blood vessels would kill you. Could you ever have imagined that what looks to you like a sewage canal could produce vitamins of vital significance? Your Creator has infinite wisdom.

Peter, now you may wonder how the acts of this organ which resembles a long hose are regulated, how the nutrients inside are propelled, and then thrown out. To put it briefly, the “willful” part of your brain does not even know about it. Indeed, if it knew, it would be constantly busy with me and unable to do anything else.

Under the control of the autonomous nervous system, the straight muscles of my walls gradually contract in waves-this is squeezing act is called peristalsis. The nerve fibers connected to me fall into two basic categories-sympathetic and parasympathetic. As the sympathetic fibers pressure me to slow down, parasympathetic fibers stimulate me to act. Thus, I try to keep a balanced functioning between these two opposite effects. When the waste material I propel this way assumes a state to be disposed of, it reaches the rectum, and when the walls here strain, I make a natural call to you that I need to get rid of garbage. This is the step where your will has a partial interference.

Colon cancer, which troubles many people today, appears in this final section. The major reason is consuming too much meat and fatty foods, lack of movement, and leading a stressful life. When these are combined, I fail to function properly. If you want to help me at that, you should consume fiber-rich foods such as fruit and vegetables, and also lead a peaceful life. My web of nerves is amazingly rich and complex. Therefore, I am sensitive to nervous changes. If you feel down or sad, and if you suffer too much stress, I begin to go into spasms. Then I fail to dispose of waste, the toxic material inside me begins to damage my inner walls and eventually increases your cancer risk. Therefore, you’d better take up the habit of a glass of warm water when you get up in the morning, and try to have regular meals at the same times of the day. Most importantly, always have fresh green vegetables on your table, reduce meat intake… and it would be great if you could afford to consume olive oil rather than any other.

Hey, wait! I was about to forget the most important point. If you don’t have any peace of mind, all of these will be useless. This doesn’t mean that you will never worry; after all, this world is a testing ground and you are a human being like anyone else. However, if you give in to troubles and get overcome by feelings like panic, fatigue, and hopelessness, then my functioning will be upset. So, troubles faced with active patience and effort without giving up hope do not harm me much.

Peter, I do not wish you to wait until you see colon cancer patients disposing of waste through a hole in their belly into a plastic bag before you feel grateful for the blessings you enjoy. Actually, maybe I have told you at most a tenth of what I know about myself. Anyway, I think even this much will give you an idea of what a work of art I am. Thanks for listening to me, Peter!

Irfan Yilmaz is a professor of biology at Dokuz Eylül University, Izmir, Turkey.

When you were a mere nineteen-day embryo, my creation began from a special mass of cells. At first, I looked like a tube, then I twisted, turned, and gradually the creation of my chambers and my neighboring veins began. Together with the other cells of the body, we developed to serve as different parts, such as nerves, skin, cartilage, muscles, and so on. And the cells which make me up are very specially programmed. When they reached a certain number and mass on your twenty-second day, they were commanded to march, and only God knows for how long. When all my cells contract together to beat, you feel it as your pulse. Though I operate in your body, Peter, you do not think much about my beats, but when you run fast, I just have to beat faster for your legs require more blood. Only then, Peter, do you notice me, but you do not give me a second thought anyway. You are so heedless, as if I will carry out this duty forever and will never get tired. Let us admit that is not so unusual for a young man, but the worst is you do not ever think of who blessed you with such a gift, and that really makes me sad. Nowadays you go to high school, and there they occasionally talk about me in biology lessons. Peter, you are not to blame, actually-teachers talk about me as if I were a simple pump. However, you cannot even move a finger if I do not pump blood into your brain. But today, I will let you know that I am not just a simple mass of flesh. I am going to tell you today that you should care about me both physically and spiritually, otherwise, you will truly regret it. I am just a friend, warning you about the bitter truth; you still have a chance to make it up.

All the cells, the building blocks of your body (maybe 100 trillion of them) need me for their nutrition, breathing, digestion, waste disposal, and to carry out their particular duties. You wonder why? Well, all their needs are met thanks to my being created to work ceaselessly. This is why I start working before any other organ at the embryonic stage. Even I do not know how long exactly I will work; sometimes, in spite of being in sound health, the appointed hour comes and I leave my duty obeying the divine command. For the most part, the Angel of Death does not tell me to stop for no reason-he somehow uses an apparent cause. There are so many causes to make me leave my duty, in such an age where accidents, bad habits, and suicides are tremendously high.

In fact, even I marvel at how I work. I am equipped with certain precautions against blood losses which occur as a result of injuries, but if the blood loss is not made up for and the bleeding is not stopped, I may get tired and stop functioning after a certain time. I can be easily affected by certain types of poisoning. This does not matter much, but what really upsets me is your living irregularly, unhealthy eating habits, inactivity, laziness, and especially your leading a stressful life quarrelling with everyone. I endure these for a while, but sometimes when I cannot take it anymore, I just quit or pretend to quit in order to draw your attention. Right after that, you have people screaming, calling the doctor in panic, demanding pills, adrenalin or heart massage… All of these are fine my dear, but why on earth do you wait until I become like that! Listen, Peter, I am telling you again, it is you who does me the greatest harm. So do not be offended if I one day get tired and quit! You just keep gulping down fatty foods, my downstairs neighbor, the stomach, keeps complaining that you are filling it up too much. When it is filled up, it starts putting pressure on me naturally. Haven’t you heard about the hadith counseling people to leave one third of their stomach empty and rise from the table before they are full? I can understand the vegetables, but what about the fast food, fried things, and other unhealthy stuff you eat? Be careful, you will have to pay for it before long, and it will be too late. Well, one has the right to benefit from the blessings in this world, but one should know where to stop. If you go on like that, my valves will be disabled by fat and my main arteries will be clogged. As for my coronary arteries, they are already created narrow and they can be clogged in a short time and lead to a heart failure.

You are just a couch potato lying before the TV all day without moving at all. I would not be surprised if you started going to the corner shop by car. If only you did exercise for a little part of the day. Some of your friends do the daily prayers and kill two birds with one stone. They fulfill their duty to their Creator and relieve their hearts with the bodily exercise. In addition, their hearts are at ease thanks to their faith. Another welcome relief for us is their fasting for a whole month once a year. Staying hungry for a certain part of the day comforts me and gives me a chance to burn some fats.

The muscle tissue which makes up my main structure is designed as an intricate ball of fibers and so I am able to function properly without changing my shape too much as I contract and relax. The surface of my walls is wrapped up in a double layer in order to prevent harm from rubbing against the ribs, which are set around me as a protective cage. Also, there is a special liquid between the two layers of the membrane and this lowers the friction even further. C’mon Peter! Who can arrange so many precautions so splendidly?

Like car engines with four cylinders, I also work like a pump with four chambers. My upper chambers are called atriums. The one on the right takes in the waste-rich venous blood, and the one on the left takes in the oxygen-rich arterial blood. The muscular strength of these chambers is relatively low, but it is good enough to pass the blood they take to the lower chambers. As for my lower chambers, named ventricles, they have thicker walls and stronger muscles. They are given the ability to contract and pump blood with great pressure. Moreover, the lower chamber on the left has even stronger muscles and thicker walls since this very chamber enables me to send blood to the entire body with great pressure and speed. Thanks to the large vein named the aorta, I send blood to each organ in the required amount and at the right speed. Precise timing is vital for my four chambers to contract successively, to open of the valves at the exact moment they should, and to send blood to the neighboring chamber or to the two main arteries. The closing of the valves also requires perfect timing to prevent the blood from flowing back. The coordination of this timing mechanism is obtained through the regular production of electricity by the atrioventricular bundle. If there is something wrong with the timing of my valves, or if they cannot close properly because they are blocked with fat or calcification and so let blood leak, you diagnose this situation as a disease. As a precaution against blood flowing backwards through the valves between the atriums and ventricles under heavy pressure, some cords are tightly fixed under them. You are not aware of any of these, but I keep working even when you are asleep. Naturally, I may change my speed at different times, according to what you do. While you are asleep, I work at an easier tempo. I work faster than normal while you are running or doing heavy exercise and I send the necessary amount of blood to every organ. My energy source? Well, the fuels I mostly make use of are fatty acids, lactic acid, and sugars. In addition, thanks to my special metabolism, I never get tired. There is only a very short period of rest of one tenth of a second between every contraction and relaxation I make. The stimulating command must come with perfect precision so that all my muscles start to contract and relax simultaneously and so that I can generate an efficient pumping force. Actually, I am not quite sure how this timing is arranged during different activities. A tiny automatic center on me produces electrical signals; the activities of upsetting and then resetting the ion balance inside and outside the cells in order to produce these signals is carried out with reactions happening in a time as short as one thousandth of a second. Even though these cells make me work with the electricity they produce, I am not really independent. The foremost among the factors that affects my functioning is the nerves from the brain. Therefore, the fear, anger, and sadness you experience upset my functioning as well. This must be why people have taken me as the center of emotions; although anger and sadness take place in the brain, I was located as the emotional center, as the effect surfaced in me.

Peter, I will ask you a simple question: is there some engineer who made the TV set you lie before? Are there people who write the articles in the magazine you are holding or who lay out the letters and pictures? There are some agents right? So, more perfectly than all of these, should there not be One who has created me and my system of blood vessels, and then placed me in your chest cavity? Well, it is high time you switched off that TV set. Now Peter, just as I fulfill my duty regularly to keep you alive, you should also spare just ten minutes to pray for and praise your Lord Who has created your body so perfectly. In the meantime, I will have found a chance to get rid of the strain you put me under because of your hurry and stress.

Within these few pages, I have probably told you only a thousandth of my splendid structure and the precision of my functioning. Neither I, nor physicians have the proper knowledge to explain all about me completely. So, my friend Peter, you need to learn to say, “How beautifully it has been made,” instead of “How beautiful it is.”