The skin, which covers a total surface area of approximately 1.65 m2 and which weighs in total about 9.5 kg, is surely the largest and the heaviest organ of the human body; yet its miraculous functions are still a puzzle to us.

A layered structure

The human skin is composed of three layers: the epidermis (outermost layer), the dermis (vascular connective tissue below the epidermis) and the hypodermis (the deepest portion of the skin), each of which has a very complex metabolism of its own. Each of the structures of which the skin is comprised has a wide variety of functions; all of these functions must be in order if we are to maintain our good health. In particular the epidermis and the dermis each have their own distinct functions, but also share some duties, and all of these are essential for the survival of the human. The thickness of the skin varies from 8 mm on the palms and soles of the feet to nearly less than 1 mm on the eyelids. Within the epidermis are found four dif¬ferent types of cells that undertake different tasks; the appearance of our skin, in terms of texture, evenness of color, hydration, and overall youthfulness and constitutional health, is greatly dependent on the interaction of these cellular functions.

A single organ with several functions

It is very interesting that the majority of people are not aware of the fact that the skin is one organ.

Not only does it cover the body, our skin performs many amazing tasks such as,

-helping with water conservation,

-helping with the maintenance of body temperature,

-perception of touch

-providing a barrier to harmful germs,

-storing fat,

-storing vitamin D,

-acting as a mechanical barrier against knocks or bumps,

-helping in the removal of the waste products of metabolism

-providing protection against environmental influences, such as cold or high temperatures, and destructive ultraviolet rays, as well.

It is common knowledge that the major task of our skin is to protect the human body from harmful environmental factors. It is, indisputable that the fundamental purpose of the skin is to provide a flexible, protective shield between us and the outside world. This is made possible by the layers of flattened epithelial cells which hinder micro-organisms and chemicals from entering the body.

Constant replacement

The benefits we have mentioned would not last long, however, if skin cells were not renewed. This amazing regeneration process happens through a replacement operation that is dependent on a continuous cell division in the basal layer. As the cells move towards the outer surface they lose their softness. Consequently, they gradually die off and stiffen. Dead cells are constantly sloughed off from the upper surface of the epidermis and are continuously shed; they are replaced by new cells that are generated in the deeper layers. This process is often referred to as “cellular renewal.” As cells progress through the various stages, they finally stiffen and die or keratinize. This dead cell layer, or keratinocytes, makes up the outermost layer of the epidermis, the stratum corneum. These hardened and cornified cells are designed by our Creator to act as a protective barrier; otherwise, living cells would not be able to provide the protective qualities necessary to isolate the living tissue from exposure to possible detrimental substances and organisms. The living epidermal cells die by an extremely sophisticated process, displaying a voluntary self-sacrifice that enables humans survive, an evident blessing from our Most Gracious Lord.

Regulation of body temperature

The regulation of temperature is considered to be one of the major duties given to the skin. We naturally lose water through constant evaporation throughout our lives. It is of utmost importance that the loss of too much body fluid is prevented. By narrowing or widening the capillary blood vessels and also by means of numerous sweat glands, evaporation on the surface enables our skin to become cooler or warmer, in a strictly limited range of temperatures. The fat cells of the skin prevent losing too much heat, and when the body overheats, the skin’s extensive small blood vessels carry warm blood to the surface where it is cooled. So, as we can deduce from this, the main task of the skin is to prevent the loss of body fluids through evaporation.

Another task of the skin is the storing of fat and the production of vitamin D [25-dihydroxycholecalciferol]. Vitamin D is a fat-soluble vitamin that is found in food and can also be processed in our body after exposure to ultraviolet (UV) rays from the sun. Sunshine is a significant source of vitamin D because the UV rays from the sun stimulate the synthesis of vitamin D in the skin. This fundamental feature of our skin is, clearly, indispensable to our skeletal development.

The witness

The human skin has also a function in sense communication with the environment. It gathers sensory information from the environment; this is performed by means of a great number of receptors (for example, those for warmth and cold) and intraepithelial nerve endings. Nerve cells in the skin form the body’s first contact with the outer world. At the moment of birth, an infant’s first experiences of the physical world are perceived through the sense of touch. Nerve cells allow the skin to receive and transmit signals from touch, pain, tickling, etc. As the skin is the boundary between a living creature and the world around it, it is also the physical interface between the creature and other creatures and the world. Hence it is the location of all contact, good or bad in kind. The Qur’an declares that the skin will also testify when we are called to account on the Day of Judgment:

Until when they reach it, their ears, and their eyes, and their skins will bear witness against them as to all that they did habitually. They will ask their skins, “Why have you borne witness against us?” They will answer: “God Who makes everything speak has made us speak.” It is He Who has created you in the first instance, and to Him you are being brought back. You did not seek to veil yourselves (when sinning) without ever considering that your ears or your eyes or your skins would one day bear witness against you. (Fussilat 41:21-22)

As pointed out in the verse …the abode of the Hereafter is truly alive (29:64), everything in the Abode of Hereafter will be alive. So, like every part of a human being, the skin will bear witness for or against them. The verse implies that it is the medium where all our contact is recorded and it will be an ideal witness.

Wounds and healing

Another astounding mission of our skin is its role in healing wounds. The human skin has remarkable selfhealing properties, which obviously point to an intelligent design. A skin wound heals from the bottom up and from the edges inward. In the first stages of healing, the basic connective tissue of the skin moves into the injured area. The depth of the wound determines how well it will heal; the regeneration process begins immediately, but we still do not know what the trigger is. As a wound heals, the edges are drawn together by a process called contracture. The most amazing part of this phenomenon are the later stages of healing. It is as if all the cells are fully aware when and where to end the repair. Nobody knows why they abruptly stop working and how they finalize restoration.

A shield against germs

Our skin also serves us by organizing and activating the immune system. Some specific cells, which form a network in the epidermis or in the outer layer of skin, play an important part in this activity, by regulating the immune response to germs. As a major contributor to the body’s immune system, constituting the first line of de fense in keeping out bacteria, viruses, and other organisms that invade the body, the skin is home to enormous quantities of T-lymphocytes, or T-cells. Those domestic defense soldiers attack and destroy bacteria, fungi, viruses, parasites, toxins, and cancerous cells that can cause disease. Thus, the skin is both a watertight barrier surrounding and protecting our body from a number of external assaults, never letting the undesired pathogenic germs penetrate.

Our Almighty and Everlasting Creator has granted us this gift of skin. He knows what those who are in need are in need of, and it is obvious that He is aware of the need of our cells, our organs, and our living metabolism, thus He has given the most favorable structural design to the human body. Just before we pray to Him, we should remember that the more consistent our demands, the more bountiful He will ordain. Frankly, there seems to be no way to explain the miracle of skin other than attributing it to the All- Beneficent God.

References

1. Cognis Deutschland GmbH & Co. KG Skin Care Forum 2006.

2. ABPI – The Association of the British Pharmaceutical Industry.

3. Dr. K.K. LO, Social Hygiene Handbook – 2nd Edition.

4. Helmut Leonhardt, His, Zyt und Mikroanatomie des Menschen, Vol. 3, Thieme, Stuttgart 1990.

5. H. Brannon M.D., The skin anatomy ed. 2002.

6. Beauty Clinics Hashmi.com. Skin Analysis 2005.

7. Goldsmith LA, Biochem and Physiology of the Skin 2nd ed NY Oxford University Press, 1991. 8. Breathnach AS. Atlas of the Ultrastructure of Human Skin. London: J. & A. Churchill, 1971.

9. Elias PM. Epidermal lipids, membranes, and keratinization. Int J Dermatol 1981; 20: 1-19.

10. National Skin Care Institute 2005-2006 website.

11. Ali Ünal, The Qur’an with Annotated Interpretation in Modern English, The Light, Inc., NJ:2006.

The apple

Most people think of an apple as a perfect example of beauty, joy, and health. Indeed, the apple is endowed with a shape that is appealing to the human eye, a beautiful range of colors, a pleasant taste and a long list of health benefits for humans. These , (1) containing two types of fibers that work in tandem to lower blood cholesterol levels, (2) helping to prevent heart disease, (3) cancer-protective activity, (4) helping remove toxic substances, such as lead and mercury from the blood, and (5) helping to reduce the risk of kidney stones. A major survey published in the May 2004 issue of the Nutrition Journal provided a review of 85 studies and identified a number of health benefits of apples, including the ability to reduce the risk of cancer, heart disease, asthma, and type II diabetes when compared to other fruits and vegetables. In addition, eating apples has also been associated with increased lung function and increased weight loss.1

Now consider all these benefits and look at how we get apples. An apple tree knows nothing about humans. An apple knows nothing about the human visual system, tastes, or body functions. How is it then that an apple is so appealing and beneficial for humans?

Honey

Honey is one of the substances produced by honeybees. In addition to being a nutritive sweetener, medical research has also found that the unique composition of honey makes it useful as an antimicrobial agent and antioxidant. These effects are due to a substance called “propolis,” which the honeybees make by combining tree sap with their own secretions. They use propolis as an anti-bacterial, anti-viral, and anti-fungal substance to protect the honeycomb. It has been found that propolis contains well-researched anti-cancer substances, such as caffeic acid methyl caffeate, phenylethyl caffeate, and phenylethyl dimethylcaffeate. Daily consumption of honey raises the levels of protective antioxidant compounds in the blood level in humans, according to research presented at the 227th meeting of the American Chemical Society in Anaheim, CA, March 28, 2004.2 Furthermore, researchers have discovered that these substances in propolis prevent colon cancer in animals.3 New studies are also looking into honey as an agent for increasing athletic performance and as a wound-healing agent. Honey has been a popular traditional remedy for many medical conditions.

Now consider these benefits of honey and how we obtain honey: Honeybees know nothing about humans. In fact, if they are agitated, they may sting humans and sometimes cause their death. The honey they make, however, has so many healing benefits that honey has been used in many foods, herbal supplements and, beauty products. The same question comes to mind: How did this come to be?

Milk

Milk is produced by mammals. In particular, cows, sheep, and goats produce milk that is consumed in many cultures.

Cow’s milk, for example, and the dairy products derived from it, promote strong bones by being a very good source of vitamin D and calcium, and a good source of vitamin K-three nutrients essential to bone health. Calcium has long been recognized for its role in building healthy bones. This is not the only benefit of calcium, however. Recent studies have shown other benefits such as helping protect colon cells from cancer-causing chemicals, helping prevent the bone loss that can occur as a result of menopause or certain conditions, such as rheumatoid arthritis, and helping to prevent migraine headaches in those who suffer from them.

Other essential nutrients in milk include iodine, a mineral essential for thyroid function, riboflavin and vitamin B12, which are necessary for cardiovascular health and energy production, vitamin A, a critical nutrient for immune function, and potassium, a nutrient important for cardiovascular health.4 Researchers have found that a beneficial fatty acid called CLA inhibited several types of cancer in mice. Test tube studies also indicated that this compound kills human skin cancer, colorectal cancer and breast-cancer cells. There are other indications of benefits of CLA, such as helping lower cholesterol and prevent atherosclerosis.(5)

The cow, the sheep, and the goat know nothing about humans. They do not know how our body functions or what our sense of taste is. Yet, the milk they produce serves as a tasty and healthy food. The same question arises: How did this come to be?

Humans also produce other nutritious foods from milk, such as cheese and yogurt. Yogurt is particularly interesting because it is made with the help of beneficial bacteria called L. bulgaricus and S. thermophilus. Everyone has bacteria inside their bodies; especially in the stomach and intestines where food is broken up and digested. Eating yogurt encourages the beneficial types of bacteria to multiply in your digestive track, helping protect the system against harmful microorganisms that cause stomach upsets and infection. Some people cannot drink milk due to lactose intolerance, yet they can consume yogurt. The emerging health benefits of yogurt include boosting the immune system, lowering serum cholesterol, and helping in the prevention and management of certain cancers. In addition, yogurt is a good source of protein, calcium, potassium, vitamins B12, and riboflavin.

Now let us turn to the two perspectives that explain, or attempt to explain, how these health-giving substances reach us: The “bounty” perspective and the “chance” perspective. Let us explore these two perspectives in more detail. First, the bounty perspective.

The bounty perspective

The bounty perspective suggests that the delicious and beneficial foods we enjoy in this world are bounties of a God with infinite knowledge and wisdom.(6, 7) God knows us because He has created us. He knows what benefits us and what harms us. He loves us and He wants to show us His love through signs. The bounties, which include foods among others, are designed to benefit us and appeal to us. In return for these bounties, He expects us to recognize Him as our Lord, our Creator, and Sustainer. He expects us to feel thankful to Him and to express our thanks through worship.

The basis for the bounty perspective can be found in the scriptures of the Abrahamic religions, Judaism and Christianity, as well as in the Qur’an. The first example is from the Bible: Every creature of God is good, and nothing to be refused, if received with thanksgiving (1 Tim. 4). Another example, from David’s Psalms as they appear in the Bible states: Be thankful to Him, and bless His name. (Psalms, 100). A striking example from the works of St. Paul is the following:

And so He gathered together a people for Himself, and fostered them with many liberal distributions of His bounty, and, after so often finding them most ungrateful, ever exhorted them to repentance and sent out the voices of the universal company of the prophets to prophesy.

The sixth chapter of the Qur’an is entitled “Cattle,” and mentions some benefits of domesticated animals, as well as dispersing some myths and false beliefs about them:

And of cattle (He created) beasts of burden and those which are fit for slaughter only; eat of what God has given you and do not follow the footsteps of the Satan; surely he is your manifest enemy. (An’am 6:142)

The following Qur’anic verses mention cattle and milk explicitly:

And God has sent down water from the cloud and therewith given life to the earth after its death; most surely there is a sign in this for a people who would listen. And most surely there is a lesson for you in the cattle; We give you to drink of what is in their bellies-from between the feces and the blood-pure milk, easy and agreeable to swallow for those who drink. And of the fruits of the palms and the grapes-you obtain from them intoxication and goodly provision; most surely there is a sign in this for a people who ponder. (Nahl 16:65-67)

In the following verse, the honeybee is mentioned by name, as well as the various semi-liquid substances that they produce, including honey:

And your Lord revealed to the bee saying: Make hives in the mountains and in the trees and in what they build: Then eat of all the fruits and walk in the ways of your Lord submissively. There comes forth from within it a beverage of many colors, in which there is healing for men; most surely there is a sign in this for a people who reflect. (Nahl 16:68-69)

The chance perspective

The chance perspective is based on Darwin’s theory of evolution, where there is no place for a merciful God.9, 10 It attributes the phenomenon of these health-giving foods to chance working with natural selection over time. It asserts that early humans or their supposed ancestors have experienced a random mutation (a change in the genetic code), which caused some of them to like apples. Those who liked apples ate them and benefited in turn. These benefits have given them a competitive advantage over others who did not like apples. Those who liked apples were able to survive better under difficult circumstances and produced more offspring than others. Through many generations, those humans who did not like apples have disappeared and today almost all humans enjoy and benefit from apples.

Consequences

The consequences of the two perspectives are completely different. If all health-giving natural products are loved for themselves, if they are thoughtlessly delighted in only for the material pleasures that they yield, that love is merely the love of self. Also, those pleasures are transient and bring pain. People with this perspective are likely to be selfish, stingy, and wasteful. But, if they are loved as favors proceeding from Almighty God’s mercy and as fruits of His munificence, and if pleasure is obtained from them with good judgment by appreciating the degree of kindness in that munificence and favor, then this is both gratitude and is a pain-free pleasure. People with this perspective are likely to be thankful, prudent, and caring for those who are in need.

To better understand the difference in the nature and consequences of these two perspectives let us consider the following parable 11:

If a mighty king were to bestow a gift on you, such as an apple, there would be two joys in that apple for you. The first of these is that the apple would be loved because it is an apple, and there would be a pleasure peculiar to and to the extent of the apple. This love does not concern the king. A person, who puts the apple to his mouth and eats it in the king’s presence, without offering his appreciation to the king, loves the apple itself and his own soul rather than the king. The king is likely not to be pleased with this person’s attitude, despite the fact that he enjoys the apple. Moreover, the pleasure that the apple gives is very limited and passes quickly. After the apple is eaten it is gone, only regret remains.

As for the second kind of joy, it is for the royal favor that is demonstrated by means of the apple. One who holds the apple precious, as if it were the sample and embodiment of a royal favor, shows that he loves his king. Moreover, the pleasure in that fruit, which is a sort of container for the favor, is such that it is far greater than the pleasure obtained from a thousand apples. This pleasure, then, is the essence of thankfulness. This love is a respectful love for the king.

Conclusion

We have presented two explanations for the phenomenon of the presence of health-giving foods in nature and for the abundance of appealing and beneficial food on Earth, such as apples, honey, and milk that are produced by plants and animals that know nothing about humans. The bounty explanation asserts that these are the bounties of a Merciful and Infinitely-Wise Creator who expects us to recognize these as bounties and be thankful to Him. The chance perspective attributes this situation to random mutations and natural selection working over time. Because God works through laws in this world, we cannot see His hand of mercy in action with the eyes in our heads. However, can we see signs of this mercy with the eyes in our heart? This is a challenge for the inquisitive mind.

That is God, your Lord, there is no god but He; the Creator of all things, therefore serve Him, and He has charge of all things. Vision comprehends Him not, and He comprehends (all) vision; and He is the Knower of subtleties, the Aware. Indeed there have come to you clear proofs from your Lord; whoever will therefore see, it is for his own soul and whoever will be blind, it shall be against himself and I am not a keeper over you. (An’am 6:102-104) 

References

1. Mateljan, George, Healthier Eating Guide and Cookbook, Health Valley Foods, 1987.
2. Mateljan, George, “The World’s Healthiest Foods,” on the web at http://www.whfoods.com/.
3. Mateljan, Healthier Eating Guide and Cookbook.
4. Mateljan, “The World’s Healthiest Foods.”
5. ibid.
6. Nursi, S., The Words, Kaynak A.S., Izmir, Turkey, 1997.
7. Abdel Haleem, M.A.S., (trans.), “Chance or Creation,” original attributed to al-Jahiz (AD 776-869), Garnet Publishing, Berkshire, UK, 1995.
8. Pao, D., “Thanksgiving: An Investigation of a Pauline Theme,” New Studies in Biblical Theology 13, Apollos-Intervarsity Press, 2002.
9. Darwin, C., Charles Darwin’s Letters: A Selection 1825-1859, Cambridge University Press, NY, 1996.
10. Boyd, R., How Human Evolved, W.W. Norton & Co., 2002.
11. Nursi, The Words.