the miracle of the hormones

A Miraculous Medicine (Cortisol)

Shortly, we will examine the aspects of another marvel-a hormone called "Cortisol." But this hormone has such a varied function in the human body that we must note a point before we begin.

The fact that a hormone can activate a cell is in itself a wonder because, in order for a hormone to affect this cell, it must activate the inner systems of the cell. This happens either by attaching to a receptor on the membrane of the cell, or by direct entry into the cell and activating a mechanism inside. But in each case, it is necessary that the hormone molecule be specially designed for the cell it will act on. If there is the slightest incompatibility in the structure of the hormone molecule and its receptor, the cell will not be affected. For this reason, the relation between the hormone and the receptor on the cell it affects has been compared to a lock and a key.


Thanks to its flawless design, the cortisol hormone can affect the liver cells just as it affects the capillary vessels. This is compared to a lock-and-key relationship with the cells.

When we examine the effects of cortisol, we discover a very important fact. God has created security systems in the human body and He has placed locks in the cells of each of these different security systems; only a single key can open these locks. For example, this key can be inside a capillary cell, or it can also be in a liver cell. This allows different cells to go into concerted action towards a common goal. No doubt, this is an example of God's artistry in creation; it is also a proof of the evolutionist deceit. The fact that different cells are programmed to work together towards a common goal, and that there is a central system that makes this program work, shows once again the invalidity of the myth of chance as proposed by the theory of evolution.

The cortisol hormone works inside the human body fighting on different fronts against pain, wounds, infection, overheating, hypothermia, allergies, lack of oxygen, hunger, and factors that increase body temperature.

As we examine the functions of cortisol, we must not forget that unconscious cells that cannot know where it will be used produce this hormone. These cells can never be consciously aware of the fronts on which cortisol fights.

Now, let us examine briefly the functions performed by this wonder called "cortisol" produced in the adrenal glands, and let us see once again how the artistry of God is manifested in the aspects of the human body. At each stage, ask yourself if this system could have come into being by evolution, and the answer will show the real nature of the theory of evolution.

The Functions of Cortisol

  • It takes measures in advance to heal wounds:

Adrenaline prepares a person for the moment of danger, whereas cortisol prepares the human body for what is likely to happen after the danger has passed. For example, it mobilizes the amino acids to go into action in the case of a wound.29 At the moment a wound occurs, these amino acids are the raw materials that will be used in the reconstruction of the tissue.

  • It reduces the sense of pain when a wound occurs:

When a person is injured, the cortisol hormone goes into action without his knowing it.

This is the reason that some people do not feel pain at the time they receive a wound (and even for some time afterwards).30 As a result, a person can find the strength to defend himself, run away, or fight even though he has been wounded.

The sense of pain is communicated by the nerve cells. But how do the cells that produce the cortisol know the mechanism that slows down, and partially stops the electrical impulses of the nerve cells?

  • In times of emergency it converts fats and proteins into sugar:

In order for body and brain cells to be nourished, sugar is required; all cells need a continuous supply of sugar, otherwise, the person will soon die.

When someone is hungry, if there are no nutrients from which sugar can be obtained, the amount of sugar in the blood will drop. In this situation, cortisol comes into play and does not allow the body to remain without sugar. It ensures the conversion of stored fats and proteins into sugar, keeping the level of blood sugar within safe limits.31


There are highly efficient refineries within tiny cells converting fat to sugar.

Fat or protein (or both) are converted to sugar. This function is really highly complex. To change one material into another is to completely alter the composition of the molecules. If a fat molecule or a protein molecule were enlarged trillions of times and placed on a table, most persons would not know which atoms had to exchange places with others. However, inside the cells are refineries that accomplish this change through a very complex operation. The cortisol hormone knows the stages in the process of this change. It is designed to open the lock that will allow this change to begin. How do the cells that produce cortisol know the shape of the key required to start the operation that will convert fat or protein to sugar? How do they know what operation is needed to convert the formula of the fat molecule (CH3-(CH2)n-COOH) into the formula of the sugar molecule (CH2OH)?

  • In emergencies it gives priority to the nourishment of the brain and heart:

Cortisol molecules go into operation in emergencies and produce a drop in the body's utilization of sugar. But here is another wonder; the effect of the emergency is not felt on vital organs such as the brain and the heart. To give an analogy, just as in times of emergency, economic resources are deployed in particular areas of a nation, so the cortisol molecules give a mobilization order and give priority to the nourishment of the heart and the brain, curtailing the nourishment of other cells.32

How do cortisol molecules know that some cells are more vital than others?

It arranges the contraction and constriction of the blood vessels:

Earlier we saw that blood vessels are not rigidly fixed pipes, but because the muscles around them can contract and relax, the diameter of the vessels can be changed when the need arises. The command to become narrow reaches the blood vessels by means of various hormones. Cortisol arranges the response of the blood vessels to the constricting and dilating factors that affect them, and thus performs another important function in emergencies.33

How does cortisol know the system according to which the muscles around the blood vessels contract, and how can it organize the response of these vessels to the contraction-dilation factors of the system?

  • It checks the movement of water:

Cortisol prevents fluid from entering cells when it is not required. Thus, it helps to maintain the stability of the blood volume. How does a cortisol molecule know that fluid has a tendency to enter the cells? And how does it know the methods required to keep the fluid outside? More importantly, how does it determine when fluid must be kept outside the cells, not all the time, but just at those times when it is necessary?

  • In times of danger, to prevent a rise in body temperature, it inhibits the production of the relevant hormone:

Another wonderful effect of the cortisol hormone is seen in the case of high fever. A rise in body temperature is a sign that the human body is fighting an illness. This rise in temperature requires that a person rest and sleep. The rise in temperature is not a side effect of the sickness; fever is a specially adjusted security precaution to force a person who is fighting an illness to rest. The rise in temperature is caused by the "temperature center" in the brain, which is activated by a substance called IL-1 (interleukin).

Cortisol is also designed to deal with excessive body temperature. When a person is in danger of death due to high body temperature, cortisol lowers the temperature by inhibiting the production of IL-1, which activates the temperature center.34

How does cortisol know that IL-1 raises a person's body temperature and that high body temperature is dangerous for a human being? How does it know where IL-1 is produced and how does it make a decision to inhibit its production?


A rise in body temperature is caused by the temperature center in the brain. A complex molecule called IL-1 activates this center. If a condition becomes a threat, cortisol stops the secretion of this material.
  • It organizes the production of some proteins, which are very important for human life:

When you are in a difficult situation, cortisol takes all your needs into account separately, one by one. It increases the production of hemoglobin, white corpuscles, and thrombocytes in the bone marrow and thereby raises their blood levels.35

A single molecule too small for the eye to detect has a number of particularities, skills and responsibilities. For this molecule to perform its functions, it must have been specially designed for these special tasks. This hormone is another instance of the harmony and flawless design in God's creation.

... My Lord encompasses all things in His knowledge so will you not pay heed? (Qur'an, 6: 80)


29 Cortisol:The "Stress Hormone" http://stress.about.com/library/weekly/aa012901a.htm
30 "Cortisone", http://www.soton. ac.uk/~gk/scifi/cortisone.htm
31 Biyoloji 2 (Biology 2), p. 131
32 Invitation To Biology, p. 472
33 Ic Hastaliklari (Internal Diseases), p. 267
34 Ic Hastaliklari (Internal Diseases), p. 267
35 Oguz Kayaalp, Rasyonel Tedavi Yonunden Tibbi Farmakoloji (Medical Pharmacology According to Rational Treatment), Ankara, Feryal Press, 1993, p. 2582