Blood pressure is pretentious by a number of factors. These include the strong point of your heart, blood vessels' order and the kidneys' fitness. A person who movements regularly, most often has a healthy heart that can drive more blood with each drive and will not need to beat as often in order to keep a normal blood pressure. Blood pressure also depends upon the artery. Hardened and narrowed arteries caused by old age or a high fat diet can make it harder for the blood to flow, causing the blood pressure to rise. When the arteries begin to stop up, the heart is then subjected to harder work. The kidneys' health also affects blood force. Because the kidneys functions to maintain water and salt volume in the body, if the kidney retains too much water and salt then the blood pressure will also boost.