What is normal blood pressure?
Normal blood pressure in a healthy adult is 120/80 or less
What is a marginal increase in pressure (Prehypertension)?
It is when the pressure is between 121/81 and 139/89 mm Hg.
In this case it is not classified as a disease but as a term chosen to distinguish individuals who have a high risk factor for developing the disease
How is pressure classified according to its value?
Classification of blood pressure in adults 18 years of age or older
These definitions apply to adults who do not take any treatment for high blood pressure and who are not in an acute condition.
When one of the two pressures, systolic or diastolic, falls into different categories, the higher category must be chosen for the individual’s pressure status.
What is its danger?
Persistent high blood pressure is a risk factor for heart attacks, heart failure, stroke, arterial aneurysms, and chronic renal failure.
Even moderate altitude shortens human life expectancy.
The risk of cardiovascular disease doubles with every 20 mm Hg increase in systolic pressure or 10 mm Hg increase in diastolic pressure.