Every organ of the body requires oxygen and nutrients for functioning and at the same time, useless substances produced during metabolism also need to be removed continuously. Both these functions are accomplished with the help of flowing blood. The blood vessel which supplies pure (oxygenated) blood from the heart to each organ is called an ‘artery’.
The walls of the artery are very strong and elastic, while its inner wall is quite flat and smooth. The process of accumulation of a thin layer of fat and other tissues on the inner wall of the artery begins at a slow pace in every human beings at an early age. Because of this process, the walls of the arteries become hard, brittle and lose elasticity. As a result, arteries get narrowed from inside. This entire process is called ‘atherosclerosis’ in medical terminology. This process is almost similar to that of the salt deposition in the water pipelines of our house after many years. This process which begins as early as either in the first or second decade of life, advances at a variable pace and with different intensity.