This term is used when the blood pressure is persistently above that  which is normal for a given age level. One of the main causes of high blood pressure is tension and other causes may include obesity, too much salt in the diet excessive drinking of tea, coffee, alcohol, other stimulants and smoking.

In all the cases the blood is forced through a small opening. Its systems are as vogue as the origin of the decease. Besides increased Blood Pressure, there may be dizziness fatigue, insomnia, palpitation weakness and headache, untreated hypertension is dangerous and immediate step shall be taken. 

So, the best way to control high B.P. is:-
1. To control the Pineal gland and other endocrine glands through Acupressure as an immediate cure.
2. For long cure reduce common salt intake  in food (one can take rock salt.