Genetic & enviromental risk factors are involved - hypertension is the MOST common non-communicable disease in the UK

risk factors include (6)

Age

Sex (<60 = males >60 = females)

Weight

Race

Educational status

Diet

Normal BP = the range of 90/60-120/80

Prehypertensive is the range of 120/80 - 140/90

Systemic Hypertenison is defined as a BP that is equivalent to or more than = 140/90

Stage I Hypertension is when systemic BP is between 140/90 - 160/100