Going too low with blood pressure?
Lowering diastolic pressure too much may be bad for people with coronary artery disease.
They keep lowering the bar for blood pressure. Normal is now 120/80 or below, revised from the previous mark of 130/85. And we've come a long way from the old rule of thumb that your blood pressure was okay if the systolic (the first number) reading wasn't any higher than your age plus 100.