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Further information
If your values are mostly “normal” under resting conditions but exceptionally high under
conditions of physical or psychological stress, it is possible that you are suffering from so-
called ”labile hypertension”. In any case, please discuss the values with your doctor.
Correctly measured diastolic blood-pressure values above 120mmHg require immediate
medical treatment.
2.2 Common Blood Pressure Questions and Answers
a) Why is my blood pressure reading always different?
Your blood pressure changes constantly. It is quite normal for blood pressure to fluctuate
significantly (50 mmHg to 60 mmHg) throughout the day. Blood pressure is normally lowest
at night, but increases during waking hours when the stress and activities of everyday
life are highest.
mmHg
AM Time PM
Your blood pressure also increases and decreases under the following circumstances
Blood pressure is higher than normal:
• when you are excited, nervous, or tense
• while taking a bath
• during and after exercise or strenuous physical activity
• when it is cold
• within one hour after meals
• after drinking tea, coffee, or other caffeinated drinks
• after smoking tobacco
• when your bladder is full
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