High blood symptoms: Can you tell if you have hypertension? What are the signs?

High blood pressure, or hypertension, happens when the blood pressure in the body is too high.

This can put strain on the blood vessels, which in turn can lead to heart complications and heart attacks and strokes.

High blood pressure is a problem that is often noticeable, meaning many people do not know they have it.

According to the NHS, many people in the UK have hypertension, many of whom will not realize it.

The only way to find out if your blood pressure is high, is to have your blood pressure checked.

The NHS advises all adults on the age of 40 to check their blood pressure at least every five years.

Blood pressure can be tested at GP surgeries, at some pharmacies and even in some workplaces.

You can also buy a blood pressure monitor at home.

Blood pressure is recorded with two numbers, measuring the systolic pressure and the diastolic pressure.

The higher number represents the systolic pressure, which is the force at which the heart pumps blood around the body.

The lower number represents the diastolic pressure, which is the resistance to the blood flow in the blood vessels.

Both are measured in millimeters of mercury (mmHg).

According to the NHS, normal blood pressure is considered between 90 / 60mmHg and 120 / 80mmHg.

High blood pressure is considered to be 140 / 90mmHg or higher.

If blood pressure is 180 / 120mmHg, this is known as malignant hypertension, or a hypertensive crisis.

Malignant Hypertension occurs when blood pressure is suddenly and extremely high, and is considered to be a medical emergency.

It is rapidly becoming well controlled.

Malignant hypertension is dangerous because it can result in fluid in the lungs, brain swelling or bleeding, and strokes.

If blood pressure reaches these levels, symptoms are more likely develop. They can include severe headaches, vision problems, chest pain, nosebleeds, blood in the urine, and nausea and vomiting.

It can be prevented, however, by checking blood pressure and keeping it under control if it is high.

"All adults over 40 are advised to have their blood pressure checked at least every five years," said the NHS.

"Getting this done is easy and could save your life."