1. Normal blood pressure is below 120/180 mmHg.
2. Prehypertension is systolic pressure that’s between 120 to 139 or diastolic pressure between 80 and 89.
3. Stage 1 hypertension is systolic pressure between 140 to 159 or diastolic pressure between 90 and 99.
4. Stage 2 hypertension is systolic pressure higher than 160 or diastolic pressure of 100 or higher.
