Spengler TENSONIC 527500 Manuel Utilisateur page 58

Blood Pressure Information
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Blood Pressure
Blood pressure is the force of blood pushing against the walls of arteries.
It is typically measured in millimeters of mercury (mmHg.) Systolic blood
pressure is the maximum force exerted against blood vessel walls each time
the heart beats. Diastolic blood pressure is the force exerted on blood vessels
when the heart is resting between beats.
An individual's blood pressure frequently changes throughout the course of
a day. Excitement and tension can cause blood pressure to rise, while drin-
king alcohol and bathing can lower blood pressure. Certain hormones like
adrenaline (which your body releases under stress) can cause blood vessels
to constrict, leading to a rise in blood pressure.
If these measuring numbers become too high, it means the heart is working
harder than it should.
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Example: fluctuation within a day (male, 35 years old)
Upper curve: systolic blood pressure
Lower curve: diastolic blood pressure
Time of day