What is hypertension and how severe can it get?

Hypertension is a medical condition of increased blood pressure.
consult your doctor immediately and maintain a healthy lifestyle.

Hypertension and high blood pressure are the same things. When this disease occurs, then the patient faces lots of complications. Actually inside the body, force exerted by the blood against the walls of the blood vessels increases and it becomes abnormal. This situation is very risky and maybe, the cause of heart disease, stroke, and death.

It means that you have to be careful with what you eat, don't smoke ... go to the doctor is the most important thing.

There you go -well said doc - not much to add other than drastic reduction of salt intake and treatment! :)

A hypertensive crisis is a severe increase in blood pressure that can lead to a stroke. Extremely high blood pressure — a top number (systolic pressure) of 180 millimeters of mercury (mm Hg) or higher or a bottom number (diastolic pressure) of 120 mm Hg or higher can damage blood vessels.