Biology of Human Aging

Aging is a natural process of our deterioration of normal activities as time progresses on. This happens to everybody. It is inevitable and unstoppable. But we have to settle with it.

There are lot of physical, physiological and biological changes that take place resulting to aging. The biological changes that take place are the cells get weakened and as a result they do not perform to their maximum capacity. Hence the stamina gets reduced. Also many changes take place to the organs that make it less efficient. As we go deeper, the real problem is the shortening of telomeres. A telomere is something like the hand of a chromosome. The chromosome is an important organelle of a cell that is concerned with genes and heredity. The telomers gets shortened as the age progresses on and results in some gene loss. The shortening takes place after each cell cycle.

As the gene loss takes place, there is no communication to cells. A gene is the one which controls the functioning of a cell. Due to the gene loss, the cell loses the functionality and cannot perform with full efficiency. As a result, the organs do not perform with full flow and affects the overall system. These are the major biological changes happening in the body as aging progresses. There is also a process called gene repression. This is the process by which the chemical signals given by genes will not reach the cell because of damage in the path or the genes. This also accounts to aging. Also the immune system cannot pass the messages among them and this result in mower immunity.