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ABOUT “BLOOD PRESSURE”
The heart is a pump that circulates
blood throughout your body. Blood is pumped from the heart into the
arteries. This pressure is called the arterial blood pressure, which
represents, in general, blood pressure. Blood pressure is indicated by
several kinds of pressures such as: systolic pressure that occurs when the
heart pumps blood; and diastolic pressure that occurs just when blood
returns to the heart.
Blood pressure differs
with age, gender and other factors. Blood pressure of one person is likely to
be affected by biorhythm of a day, posture, physical activities, mental
activities, stress and atmospheric temperatures.
It is said that blood pressure of a healthy person varies by 20 to 50 mmHg
within a day.
Blood pressure value (mmHg)
Time of day
Systolic blood pressure
Diastolic blood pressure
What is blood pressure?
Blood pressure changes at all times.
(Systolic)
(Diastolic)
Artery
Artery
Left atrium
Left
ventricle
Left atrium
Left
ventricle
Dilation
Contraction
The artery wall expands.
Normal state is restored
to the artery wall.