BLOOD PRESSURE REDEFINED AS PREHYPERTENSION

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Dr. Jai Maharaj

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Blood Pressure redefined as Prehypertension

ANI
The Times of India
Friday, September 5, 2003

Washington - Researchers have renamed the category of
normal blood pressure readings as Prehypertension. The
Mayo Clinic Health Letter explains the recent changes
made in the blood pressure guidelines.

Blood pressure is the force exerted on the artery walls
by blood flowing through the body and is important
primarily because elevated blood pressure can put extra
stress on the arteries and heart, thereby causing
cardiovascular diseases.

According to a report in NewsWise, the National Heart,
Lung and Blood Institute released stricter guidelines for
high blood pressure, in May 2003, because research showed
that having blood pressure readings at the old normal or
high-normal ranges increased the risk of developing heart
diseases.

Over a longer period of time, high blood pressure causes
arteries to become injured or damaged and also overworks
the heart. An overworked heart can wear out, losing the
strength to effectively pump blood, contributing to
serious cardiovascular concerns, explain the researchers.

The new category, called prehypertension, covers a
systolic range of 120 to 139 mm Hg and diastolic range of
80 to 89 mm Hg. (Systolic pressure, the first number in
your blood pressure reading, measures the pressure in
your arteries when your heart beats. The second number,
diastolic pressure, measures the pressure in your
arteries between beats.) The new guidelines also lower
the normal blood pressure to below 120/80 mm Hg, which
was the old optimum level.

Thus, if a person is in the prehypertension range, he is
at an increased risk of cardiovascular disease. The risk
increases steadily with the rise in the blood pressure
within the prehypertension range.

The guidelines however confirm that the risk can be
reduced by making a few lifestyle changes like
maintaining a healthy weight, eating a healthy diet,
reducing salt intake, being more active, limiting alcohol
and stopping smoking.

Read the complete news at:
http://www.timesofindia.com

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