Systole

Blood pressure is typically recorded as two numbers and written as a ratio. The top number, the systolic blood pressure, relates to the pressure in the arteries as the heart contracts and pumps blood through the arteries to the rest of your body. The bottom number, the diastolic pressure, indicates the pressure in the arteries when the heart rests between beats.  

In general, more attention is given to the systolic blood pressure number since it's a major risk factor for cardiovascular disease, especially for people over the age of 50. In most cases, systolic blood pressure rises gradually over time, because large arteries begin to stiffen, plaque begins to build up, and incidences of cardiac and vascular disease begin to increase.

Measuring
To measure your systolic blood pressure, your doctor will usually use a device called a sphygmomanometer. This is typically a fabric cuff that is wrapped around your arm and then slowly inflated. As the air releases, the reading will appear on the gauge attached to the cuff. There are also blood pressure machines that can measure blood pressure.

Importance of Systolic Blood Pressure
Systolic blood pressure is what keeps the blood flowing through the arteries so areas of the body like the brain and kidneys are able to receive the oxygen and nutrients they need. It also helps remove any waste matter that tends to build up in the body. Factors Affecting Systolic Blood Pressure
Systolic blood pressure can change in the course of a day based on certain factors. The most common factors that can contribute to a changing systolic blood pressure include:

• Physical Health
• Emotions
• Smoking and alcohol use
• Poor sleep habits

Since several factors can affect a systolic blood pressure reading, it's important to get several reading done before you jump to any conclusions about your health. If you make an effort to stay fit, eat healthy, eliminate poor habits and reduce stress then you will be less likely to develop hypertension.