5
There are kinds of blood pressure: a systolic (upper) one,
which corresponds to the heartbeat pushing blood into the arte-
riae; and a diastolic (lower) one, which means the blood pressure
between two heartbeats.
Blood pressure is subject to fluctuations during the day even
in healthy people. The fluctuations are influenced by a number of
factors – time of day, person’s condition, physical or mental activ-
ity, environment, etc.
Day-Night Fluctuations of the Blood Pressure
0
0
50
40
30
0
0
00
90
0
0
0
50
40
.00 0.00 .00 4.00 .00 .00 0.00 .00 4.00 .00 4.00 .00 .00
SYS blood pressure
DIA blood pressure
SYS blood pressure
DIA blood pressure
Содержание M1-S-1
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