High blood pressure or hypertension is when the pressure of blood in the body is too high.
The condition can be dangerous, as if left untreated it can lead to serious health problems such as heart attacks and strokes
This is because the high blood pressure additionally strains the blood vessels that serve the body organs like the heart and brain (19659002). It can be difficult to know if you have high blood pressure as it has rarely noticeable symptoms.
More than one in four adults in the UK have high blood pressure, many of whom will not recognize it, according to NHS.
The only real way to find out if you have blood Blood pressure is high, blood pressure needs to be checked.
However, symptoms of high blood pressure can develop.
When blood pressure is extremely high, it is called a malignant hypertension or hypertensive crisis
Malignant hypertension occurs when blood pressure occurs E-spikes suddenly and extremely, and is considered a medical emergency.
Malignant hypertension is dangerous because it can lead to fluid in the lungs, brain swelling or bleeding and strokes.
When blood pressure reaches this level, symptoms may become more likely to develop.
Symptoms may include severe headache, blurred vision, chest pain and nosebleeds.
However, malignant hypertension can be prevented by controlling blood pressure and keeping it under control when it is high [1
According to NHS, normal blood pressure is assumed to be between 90/60 mmHg and 120/80 mmHg.
High blood pressure is considered 14059 mmHg or higher
Malignant hypertension is considered 180 / 120mmHg or higher
"All adults over 40 are advised to have their blood pressure checked at least every five years," the NHS said.  "To do so is easy and could save your life."
Blood pressure can be tested at doctors' offices, in some pharmacies and even at some workplaces. You can also buy a sphygmomanometer to use at home.