Ageing happen because little by little the body the body's cell and organs fails to replace and repair themselves. There is a limit to the number of times that each cell can divide, as the body's cells reach its limit, the rate at which they divide slow down. Sometimes the new cells that produced have defects or do not carry out their usual task effectively. Organs can begin to fail, tissues change in structure, and the chemical reactions that power the body become less efficient. Sometimes the blood supply to the brain is not effective. The brain cells become starved of nutrients, leading to forgetfulness, that's why as a person aged they become more and more forgetful.

The Immune System plays a big role in this aging process with its operation located in the thymus gland. When this gland fail, the immune system of the body becomes weak and are at the mercy of virus, bacteria, etc.

Main Causes of Premature Aging:

• Smoking and polluted air produce molecular crossing in cells and this are responsible for skin and tissue hardening which causes brittle and wrinkled skin.
• This effect of molecular crossing is also produced by free radicals which tend to destroy and disintegrate cell, proteins and tissues, as well as the heart of cell, the DNA, by oxidation.
• Free radicals are produced by ultra violet rays from the sun, by the normal metabolism of certain fats and polluted air. Free radicals affect cerebral cells causing old age such as the loss of memory, depression, insomnia, sexual impotency, arteriosclerosis, etc.