What is the cause of high blood preasure

What is the causes of high blood preasure ?
 

In 95% of cases the cause of hypertension is unknown: it is called "essential" or idiopathic. In this case the treatment will aim to treat or symptoms namely to reduce tension.
In many cases, it has no clear origin. However, age, family history are factors associated with high blood pressure. Smoking, obesity, excessive salt consumption or alcohol, stress, diabetes, among others, factors that aggravate high blood pressure