Your body is made up of around two hundred different types of cell. They all work together, day and night. For the cells to survive, grow, multiply and perform their tasks, each one of them must make the molecules it needs.
Two thirds of your entire body is water, this is because two thirds of a cell is made of water. The rest of its composition is a mixture of molecules, mainly proteins as well as lipids and carbohydrates. Your cells are responsible for turning the raw materials of foods you consume into molecules needed by your body with the use of thousands of different chemical reactions.
At the rate of millions per second, old cells will be replaced with new ones. Before other cells replace them, cells die in various ways. Some are lost through “wear and tear”, some deliberately self-destruct and some have simply reached the end of their existence. But, how do different cells in a human body replace themselves?
The Replacement of Cell
During the cold war, the nuclear states conducted nuclear tests that expelled a radioactive carbon isotope. The nuclear weapons spread the radioactive Carbon-14 around the globe, which then combined in the atmosphere to form carbon dioxide. This carbon dioxide was then utilised by plants, eaten by animals and people, and became part of the cells, most of all, part of the DNA once a new cell is born. The nuclear bomb tests bear an unexpected benefit because of the Carbon-14 emitted from the blasts, it is possible to investigate the age of adult human cells as well as the replacement of cells.
Many people, especially among women, complain about falling hair. Though your hair falls out frequently, which may leave strands of hair anywhere in your room or between the bristles of your hairbrush, this doesn’t cause you to go bald. In addition, donating blood or giving blood samples will not gradually drain your circulatory system.
The situations mentioned above are some of the examples pointing to a replacement rate of cells, which is the characteristic of different tissues and in various conditions. However, what makes this clear is that most types of cells renew themselves. Your skin cells are constantly shed and renewed. As estimated by scientists, the human body is composed of 10 trillion cells overall in which between 30,000 and 40,000 of them fall off every hour. They also estimate that over a twenty-four hour period, your body loses almost a million skin cells.
Red blood cells travel repetitively through the circulatory system with a lifetime of around four months. Because of their repetitive journey through the bloodstream, there are about 100 million new red blood cells being formed in your body every minute. Moreover, cell replacements also occur in most of the tissues in your system.
Cell Types and their Turnover Time
Here is a collection of the replacement rates of various cells in the body, which includes some of the hundred different types of cells and their turnover time.
- Stomach – 2 to 9 days
- White blood cells Eosinophils – 2 to 5 days
- Cervix – 6 days
- Platelets – 10 days
- Fat cells – 8-10 years
- Skeleton – 10 percent per year
- Sperm (male gametes) – 2 months
- Oocytes (female gametes) – lifetime
- Central nervous system – lifetime
Individual tissues have a finite turnover time. Other tissues have lifetimes that are measured in years, not days or months, but are still considered far from permanent. Though the body is highly capable of renewing its cells, the regeneration doesn’t continue endlessly. Experts theorize that the DNA is the root cause. DNA collects mutations and its information is degraded. Others indicate that it was because of the mitochondria’s DNA, lacking the repair mechanisms accessible for the chromosomes. Another theory involves stem cells, which eventually grow weak with age.
Furthermore, the statement that people replace every cell in the body every seven or ten years is incorrect. Research has confirmed that every type of tissue in the body replaces cells at different rates, while others never replace cells at all. Cells die and will be replaced all the time, thus there is no seven-year cycle.
For a holistic approach when it comes to your overall health and wellness, consult your gentle Gold Coast chiropractor here at Hinterland Chiropractic. We have been serving families from Nerang and other communities on the Gold Coast for over 20 years now, continuously providing them with the best lifetime health care possible. Call us today on (07) 5527 3133 or simply book your appointment online.