Archive for the ‘Hypertension Studies’ Category

Why Does High Blood Pressure Matter?

Tuesday, September 15th, 2009

Although high blood pressure may seem like nothing important especially since it has no symptoms, it can lead to a plethora of health problems- many of which are fatal.

-According to the American Heart Association, high blood pressure is the number one modifiable risk factor for stroke

-Beginning at 115/75 mmHg, the risk of cardiovascular disease doubles with every additional 20/10 mmHg.

-Heart disease is the number one killer among women in the U.S.

-Even if you have normal blood pressure when you are 55, you have a 90% lifetime risk for developing hypertension.

-It is estimated that 1 in every 3 American adults have high blood pressure.

-Twenty-one percent of people with hypertension are unaware they have it.

-Other health problems caused by high blood pressure include heart attack, vascular dementia, angina, heart failure, kidney failure, erectile dysfunction, peripheral arterial disease, aneurysm and it can even make blood vessels in the eyes burst and bleed.

-Approximately 70% of people with Vascular Dementia are also hypertensive.
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Why Does My Blood Pressure Fluctuate?

Thursday, August 27th, 2009

Have you ever wondered why your blood pressure fluctuates? Here is a list of common activities and their impact on your blood pressure.

Attending a meeting: +20.2/15.0
Working: +16.0/+13.0
Commuting: +14.0/+9.2
Walking: +12.0/+5.5
Dressing: +11.5/+9.7
Doing chores: +10.7/+.67
Talking on telephone: +9.5/7.2
Eating: +8.8/9.6
Talking: 6.7/6.7
Doing desk work: 5.9/5.3
Reading: +1.9/+2.2
Doing business (at home): +1.6/+3.2
Watching television: +0.3/+1.1
Sleeping: -10.0/-7.6
(Changes are relative to blood pressure while relaxing)

Please see http://www.cmaj.ca/cgi/content/full/161/3/277 for original table.

Have High Blood Pressure? Beware of St. John’s Wort!

Tuesday, August 18th, 2009

Did you know that the herb St. John’s Wort, commonly used to fight depression, can actually raise your blood pressure?
Here are some St. John’s Wort facts:

  • Can raise blood pressure to dangerous levels especially when combined with MAOIs
  • St. John’s Wort interacts with many prescription medications
  • When taken with antidepressants, it can actually increase the likelihood and severity of side effects

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Does Metabolic Syndrome Increase Your Risk of Breast Cancer?

Monday, August 3rd, 2009

A large study which involved data from 4,888 postmenopausal women evaluated the relationship between metabolic syndrome and breast cancer, and the results were rather alarming.

Postmenopausal women who either did not have metabolic syndrome or who had it for less than three years were not found to be at a higher risk of getting breast cancer; however, women who had metabolic syndrome for three to five years had twice the risk of being diagnosed with breast cancer. They also discovered that the woman who suffered from high diastolic blood pressure had a higher risk of breast cancer by nearly 2.5 times! Increased triglycerides and glucose were also found to increase risk by about 1.7 times.

While not conclusive, this study highlights how important a healthy heart and low blood pressure are to your overall health. If you are battling high blood pressure, check out the Zona Plus, a remarkable device discovered by the Air Force to lower blood pressure naturally.
» More: Does Metabolic Syndrome Increase Your Risk of Breast Cancer?

What is Metabolic Syndrome?

Friday, July 24th, 2009

If you have been doing research about high blood pressure, chances are you have seen the phrase “metabolic syndrome”. So, what is metabolic syndrome? According to the American Heart Association (AHA) it refers to a group of conditions that make it more likely that you will suffer from heart disease, diabetes, stroke and other diseases related to plaque buildup in the arteries. The AHA has suggested that you can be diagnosed with metabolic syndrome if you have, or are being treated for, three or more of the following:

-Elevated Blood Pressure such that your blood pressure is equal to or greater than 130/85. High blood pressure alone can be dangerous as it can lead to heart attack, stroke and dementia.

-Abdominal Obesity to the point that a man’s waist circumference is equal to or greater than 40 inches and equal to or greater than 35 inches for women. Elevated waist circumference (i.e. having an “apple shape” body) with excess fat in the abdominal area specifically has been tied to greater risk for heart disease than when fat concentrates in other areas of the body, such as the hips.

-Triglycerides elevated to more than 149 mg/dL.

- HDL (“good”) cholesterol of less than 40 mg/dL for men and less than 50mg/dL for women.

-Insulin Resistance or Glucose Intolerance
where you have higher than normal fasting blood sugar (glucose) equal to or greater than 100 ml/dL.

The Nation Heart Lung and Blood Institute report that nearly 25% of the US adult population have metabolic syndrome.

Can you “outsmart” cardiovascular disease?

Monday, July 20th, 2009

A new study analyzed data regarding 4,289 former U.S. soldiers and discovered that IQ (a measurement of a person’s ability to reason and problem solve) may play a significant role in the difference in heart disease rates and stroke deaths between those of high versus low socioeconomic status. In this study, scientists found that IQ accounted for more than 20% of said difference, even when taking into account factors such as obesity and smoking.

Researchers are not entirely sure by which mechanism(s) IQ impacts cardiovascular health; however, they do note that IQ has been strongly related to socioeconomic status (i.e. lower socioeconomic status = lower IQ overall) and that people of lower socioeconomic status have worse health as a whole.
» More: Can you “outsmart” cardiovascular disease?

How low do you really need to lower your blood pressure?

Tuesday, July 14th, 2009

A recent Cochrane Review investigated whether lowering blood pressure below 140/90mmHg was beneficial in prolonging survival or reducing stroke, heart attack, heart failure or kidney failure. Surprisingly, they concluded that, “More trials are needed, but at present there is no evidence to support aiming for a blood pressure target lower than 140/90 mmHg in any hypertensive patient.”! They also mentioned that this held true for high risk patients (such as diabetics) as well.

You can read the report here: http://mrw.interscience.wiley.com/cochrane/clsysrev/articles/CD004349/frame.html.

Buckwheat May Lower Blood Pressure Naturally!

Monday, July 13th, 2009

Research indicates that buckwheat may act as an ACE inhibitor and may also be a vasodilator!

A study titled “Latent production of angiotensin I-converting enzyme inhibitors from buckwheat protein” published in the Journal of Peptide Science reported on the observed ACE inhibiting properties of buckwheat. Man-made ACE Inhibitors are a very popular class of medical drugs (Lisinopril is one example) for treating hypertension. The goal of Angiotensin-Converting Enzyme (ACE) Inhibitors is to keep the angiotensin converting enzyme (ACE) from initiating a process that eventually creates angiotensin II. Since angiotensin II causes vasoconstriction (narrowed arteries), sympathetic activity and ultimately sodium retention, prohibiting its creation can often lead to lower blood pressure.

Another study published in 2008 focused on buckwheat and vasodilatation. The study, titled “Endothelium-dependent vasorelaxation effect of rutin-free tartary buckwheat extract in isolated rat thoracic aorta”, reported that they observed endothelium-dependant vasorelaxation caused by buckwheat consumption. The endothelium is the lining in the arteries and when dysfunctional it plays a large role in the development of high blood pressure, and if this study’s observations reflect reality, then buckwheat could help ensure that the endothelium behaves properly.
» More: Buckwheat May Lower Blood Pressure Naturally!

Why is it important to lower blood pressure?

Monday, June 15th, 2009

According to the American Heart Association, high blood pressure is the number 1 modifiable risk factor for stroke and approximately 21.3.% of people with hypertension do not know they have the condition. It can lead to a plethora of health problems such as heart attack, stroke, vascular dementia, angina, heart failure, kidney failure, peripheral arterial disease, aneurysm and it can even make blood vessels in the eyes burst or bleed.
High blood pressure facts:

  • In 2005, high blood pressure was reported as a primary or contributing cause of death for 319,000 Americans.
  • It is estimated that nearly 1 in every 3 Americans has high blood pressure and that nearly one billion people are affected worldwide.
  • Approximately 90% of middle-age adults are expected to develop high blood pressure during their lifetime.
  • It is estimated that a 2mmHg decrease in systolic blood pressure in the population would result in a 6% reduction in mortality from stroke, 4% from coronary heart disease and a 3% decrease in overall mortality.

In patients with high blood pressure, the heart often has to work extra hard to produce adequate blood flow and this increase in stress on the heart can cause it to enlarge over time. The added pressure on the artery walls can also cause damage to the endothelium making it easier for plaque and cholesterol to build up and narrow the artery. High blood pressure is especially dangerous because most of the time is has no symptoms, earning it the nickname of “The Silent Killer”.
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Lifetime Risk of Developing High Blood Pressure is 90%!

Wednesday, June 3rd, 2009

A major study published in The Journal of the American Medical Association (JAMA) was able to conclude that 9 out of 10 middle-aged and older US adults are likely to develop high blood pressure over their remaining lifetime. The researchers also found that the lifetime probability of receiving antihypertensive medication was 60%.

Researchers emphasized that it is widely accepted that hypertension can be avoided with appropriate lifestyle changes. The study authors also wrote,

The approach of waiting for hypertension to develop and only then treating the elevated blood pressure is injudicious. As articulated by Stamler, such a strategy is “late, defensive, reactive, time consuming, associated with side effects, costly, only partially successful, and endless.”

» More: Lifetime Risk of Developing High Blood Pressure is 90%!