There are two types of blood pressure or hypertension
Primary or Essential Hypertension
Most people with high blood pressure - 95% - have what's called primary or
essential hypertension. This means that there's no single clear cause of it.
Although there is no specific cause of essential hypertension, But you are also
more likely to develop hypertension if you:
are obese (very overweight)
drink a lot of alcohol
eat a lot of salt
are under a lot of stress
have stron family history.
You may be among the other 5% of people with high blood pressure who have what's known as secondary
hypertension. This means your condition can be linked to a recognised cause - in fact, it may be a
symptom of another underlying disease.
Secondary hypertension can be caused by:
adrenal gland disease
narrowing of the aorta (Coarctation)
Secondary hypertension can also be caused by the contraceptive pill (rarely),
steroids, or by pregnancy causing pre-eclampsia.