It says that as well as reducing the amount of salt you eat and having a generally healthy diet, you should cut back on alcohol, lose weight if you’re overweight, cut down on caffeine and if you are a smoker you should stop smoking.
High blood pressure often has no symptoms, and many people who have high blood pressure do not know it, according to the NHS.
If you are over the age of 40, the health body says you should be getting it checked every five years.
As many as five million adults in the UK have undiagnosed high blood pressure, so will not know that they are at risk, according to the British Heart Foundation.