human heart Archives

Heart cancer is rare. Skin cancer is the most common form, occurring in about one in five people during their lifetimes. Liver cancer affects about one in 100. However, heart cancer develops in only about one in 50,000 people. When it does occur, it usually does not begin in the heart but metastasizes from another area of the body.

The fact that heart cancer is rare is connected with the slow regeneration of heart cells. The body maintains itself by regenerating cells. When cells are damaged, the body replaces them automatically with new cells. When new cells are formed, mutations are possible, and sometimes mutations can cause the regeneration process to go beyond what’s necessary. When new cells continue to grow exponentially, they form masses, which we call malignancies.

The uncontrolled growth of these new cells takes over and robs the body of energy needed for other functions. The faster cells regenerate, the greater the chance of mutations, which increases the possibility of uncontrolled cell growth. When a person smokes or uses tobacco, it affects the lungs, throat, and mouth, causing damage to those tissues and prompting those cells to be regenerated. This increased regeneration raises the chance of mutations and cancer in those areas.

Heart cancer is rare, in part because heart cells regenerate very slowly. Less than half of the heart cells you had when you were born will be replaced during your lifetime. However, your skin cells regenerate completely in less than two months. The slow regeneration of heart cells is apparently a major reason why heart cancer is rare. In some animals, such as amphibians, heart cells regenerate much more quickly. In mammals and humans, regeneration is much slower. Instead of making new cells, the heart develops scar tissue. The trade-off is that the heart is durable and functional from birth to natural death in humans.

Skin cells regenerate quickly, which is good because skin is exposed and easily damaged. At the same time, it means there’s a greater danger of skin cancer. Other parts of your body that are mistreated in various ways, such as your lungs from smoking or your liver from alcohol, must regenerate damaged cells, resulting in an increased risk of cancer. God’s design of our bodies is truly amazing. Many of the health problems we face stem from our misuse of the gift God has given us. Being good stewards of God’s gifts benefits us in many ways, including a longer and healthier life.

Reference: popsci.com

On September 20, 2023, Lawrence Faucette had a pig’s heart transplanted into his body to replace his own heart, which was in total failure. Xenotransplants, transplanting animal organs into humans, have been tried in the past, but the patient’s immune system destroyed the transplanted organ. Faucette’s animal heart came from a pig that was genetically modified to make it more human-like. After a month, there has been no sign of rejection, and Faucette is in physical therapy. The medical science community is interested in xenotransplants because there is a massive shortage of human organs for transplantation. (Update: Unfortunately, Mr. Faucette passed away on October 30, 2023.)

Many people have questioned the religious implications of xenotransplants. Various Bible passages speak of the human heart but not the physical organ. The Old Testament uses the Hebrew word for “heart” 851 times, primarily referring to the mind of an individual. There are a few cases, like Absalom in 2 Samuel 18:14, Nabal in 1 Samuel 25:37, and Joram in 2 Kings 9:24, where the physical heart is intended. In the New Testament, when Jesus talks about the “pure in heart” in Mathew 5:8 or refers to hard hearts, as in Mark 3:5, these are clearly not references to the physical heart.

The bottom line is that God is not primarily concerned with the physical organ but with our thinking, attitude, compassion, and capacity to love and serve. What happens to a person’s body is that it will eventually return to the Earth from which it came. Abraham said in Genesis 18:27, “I am but dust and ashes.” Solomon wrote in Ecclesiastes 12:7, “Then shall the dust return to the earth as it was: and the spirit shall return to God who gave it.” The psalmist wrote, “we are dust” (Psalms 103:14), and we “die and return to the dust “(Psalms 104:29).

Doctors have used valves from pig hearts for a long time, with great benefits for those who receive them. Understanding God’s design and creative wisdom opens the door for transplanting animal organs into humans, providing ways to make a human’s short tenure on Earth more pleasant. However, it is ultimately our soul and relationship with God that is of primary concern. Jesus made that abundantly clear when He said, “Do not fear those who kill the body but are not able to kill the soul: but rather fear him which is able to destroy both body and soul in hell” (Matthew 10:28).

References: USA Today and scientificamerican.com

Tag: human heart

Heart Cancer Is Rare

Transplanting Animal Organs into Humans