How often is our body
The human body - is a complex living machine, which harmoniously as a whole, operating different systems. All parts of the body are made up of cells, which in the body of an adult about 100 trillion.
Some of these cells are constantly dying out, and their places are taken by new ones. For different human organs and tissues of the body full refresh cycle takes different amounts of time. And for many of our body's cells this is determined more or less accurately.
And even if the passport is equal to your age, for example, 35 years, then your skin may be old just two weeks, the skeleton 10 years, and the lenses of your eyes around your peers. How often is the other cells in your body, we describe in this article.
of skin cells
Full substitution of the epithelial cells takes place 14 days. The skin cells are formed in the deeper layers of the dermis, gradually come to the surface and replacing the old cells die and are sloughed off. In one year, our body produces about two billion of new skin cells.
Skeletal muscle tissue is completely renewed at intervals of 15-16 years. The rate of cell renewal affects a person's age - the older we get, the slower the process.
7-10 years - this time, for which there is a complete cell regeneration of bone tissue. In the structure of the skeleton simultaneously operate both the old and young cells. In this case, the wrong unbalanced diet can affect the worse the quality of new cells, causing numerous complications. Every day, bone tissue generates hundreds of millions of new cells.
The blood cells
Complete blood cell renewal takes from 120 to 150 days. The body of a healthy person daily produces the same amount of blood cells as they die, and this number is equal to about 500 billion cells that have different purposes.
The cells of the epithelium of the stomach, which filter nutrients into the body, replaced very quickly - just 3-5 days. This is necessary, as these cells are exposed to an extremely corrosive environment - gastric juices and enzymes responsible for processing food.
If you do not focus on the cells of the intestinal epithelium, which are replaced every 5 days, the average age of the bowel will be approximately 15-16 years.
Its cells are completely renewed in just 300-500 days. It is surprising that the loss of 75% of the liver cells, it is able to recover the full amount of its only 3-4 months. Therefore, a healthy person can especially not fearing for his health of his liver transplant in need - it will grow again.
For a long time it was assumed that cell infarction (heart muscle tissue) is generally not updated. However, recent studies have shown that a full refresh of heart muscle occurs approximately every 20 years.
Himself and the lens cells of the brain responsible for processing visual information, are of the same age as the man. Regenerated and updated only corneal cells of the eye. In this case, a complete upgrade of the cornea takes place quite quickly - the whole cycle takes 7-10 days.
Hippocampus - part of the brain responsible for learning and memory, and olfactory bulb regularly update their cells. Moreover, the higher physical and brain activity, the more the formation of new neurons in these areas.