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Heart disease is an umbrella term for a number of different diseases affecting the heart. As of 2007, it is the leading cause of death in the United States, England, Canada and Wales, killing one person every 34 seconds in the United States alone.
The blood vessels consist of arteries, arterioles, capillaries, venules, and veins. All blood is carried in these vessels. The arteries, which are strong, flexible, and resilient, carry blood away from the heart and bear the highest blood pressures. Because arteries are elastic, they narrow (recoil) passively when the heart is relaxing between beats and thus help maintain blood pressure. The arteries branch into smaller and smaller vessels, eventually becoming very small vessels called arterioles. Arteries and arterioles have muscular walls that can adjust their diameter to increase or decrease blood flow to a particular part of the body.
2009-03-25

Blood Pressure - Take a Hint  

Did you know that in the United States and the United Kingdom, or high blood pressure, also known as hypertension is responsible for more strokes than heart attacks. Hypertension affects approximately 25 percent of people now live in America and one third are not included in the state until it is fatal. This is significantly more in African Americans of both sexes than in other racial group.

hypertension is a medical condition in which fatty deposits in blood vessels and block blood flow resistance and thus to an increase in blood pressure against the vessel wall. The pressure on the vessels of blood to the heart muscles. The heart works harder to pump blood circulates to all parts of the body tissue. The more blood the heart pumps, the smaller the arteries, the higher the blood pressure.

If this condition persists, damage to the vessels and the heart is likely to increase to a high degree the risk of heart failure. Unfortunately, there is in most cases, high blood pressure show no symptoms. And for this reason, it makes sense, your blood pressure checked from time to time.

Blood pressure is usually in the upper arm with an instrument called sphygmomanometer which you might have seen, lying on the desk of the doctor. It consists of an inflatable cuff, around your upper arm and a tube of mercury, that measures the pressure. The reading is expressed in millimeters of mercury (mm Hg) and is available in two numbers with a number on the other, for example, 120/80 mm Hg, both of which are important for your health.

The upper row, ie the 120 is the systolic blood pressure (SBP), the pressure in the arteries when the heart or contracts, while the lower range ie 80 is the diastolic blood pressure (DBP), the pressure in the arteries when the heart rests between beats.

An average adult normal BP according to scientific study, said that to 139/89 mm Hg or less. A systolic pressure of 140 mm Hg and a diastolic pressure of 90 mm Hg is a limit of stage 1 hypertension, where as 150/100 mm Hg or higher is high, and it is stage 2 hypertension. Of course, blood pressure varies considerably throughout the day and night. During sleep, when our system is relatively inactive, the blood pressure falls due to the low demand for oxygen. It starts to rise, when our day begins with activities. But be assured that doctors know best when and how to read your BP.

Since high BP appears to accelerate the development of disease in the arterial wall, damage to the arterial lining and an additional load capacity for the heart to pump blood, there is much greater chance of developing angina (chest pain) or myocardial infarction .

The kidney plays an important role in the regulation of blood pressure. The secrets of the hormone called renin, the arteries to contract and increase the flow of blood pressure. The kidneys and the fluid volume of blood, because they retain salt in the bloodstream. This salt attracts water so the volume of blood that the arteries, as well as the pressure increases.

hypertension can develop as a result of some other medical disorders such as kidney or liver disease. A diet high in salt could also increase BP in some people. Hereditary, physical inactivity and alcohol plays a major role in the acquisition of BP.

 

To learn more about blood pressure and heart diseases click here

Knowledge is power, so Learn and Live!

Miracle is an expert researcher on health matters especially heart health, women health and environmental health issues, a motivational speaker and a teacher. I love teaching and writing articles on these topics. My desire is to share the insight gained from this experience to positively affect people's lives. Welcome to my world of health matters

Article Source: http://EzineArticles.com/?expert=Miracle_Obi

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