
The 24-hour blood pressure check is now considered to be best practice, even though far too few doctors follow it.
As researchers have reported in a new study, what is found in the doctor's surgery is only part of the picture - and it may be the least reliable part - whereas the amount that blood pressure decreases in the night is probably the most significant.
They carried out 24-hour monitoring on 7,458 people, and discovered that night-time blood pressure levels were a far more accurate predictor of a heart attack.