Hypertension, also known as hypertension, can lead to life-threatening effects if left untreated, such as heart attack and stroke.
This is because the condition can stress the blood vessels and increase the size of the heart, causing blood vessels to clog, burst or leak and damage important organs.
You may be at an increased risk for cardiovascular disease, kidney disease, gout, vascular dementia, and vision problems.
But high blood pressure can often be prevented or reduced by eating the right foods. Nuts are recommended as part of a healthy, balanced diet and a variety of health benefits – including lowering high blood pressure.
Which nuts are best for those with high blood pressure? According to a study, dietary pessaries reduce systolic blood pressure and peripheral vascular responses to stress in adults with dyslipidemia, pistachios in a moderate-high-fat diet reduce blood pressure during periods of stress.
Other studies have found that almonds have a similar effect. Both can easily be eaten as a snack or thrown into salads.
But other nuts, such as Brazil nuts, cashew nuts and macadamia nuts, should be avoided.
These nuts are higher in saturated fat, which is bad for the body's cholesterol level.
If too much cholesterol is in the blood, it can accumulate on the sides of the arteries, narrowing them and increasing the risk of heart attack or stroke.
Dry roasted, salted, flavored or honey roasted nuts that come with extra salt should also be avoided.
Salt ensures that your body stores water. So if you over-eat, the extra water in your body increases your blood pressure.
Potassium helps to balance the negative effects of salt and lowers blood pressure.
Blood Pressure UK advises, "To take advantage of more potassium in your life, try eating at least five servings of fruit and vegetables each day (one serving is about the size of your closed fist).
"Not only will this help lower your blood pressure, it will also help you prevent certain cancers, bowel problems and even heart attacks or strokes."
Good sources of potassium include potatoes, sweet potatoes, bananas, tomato sauce (no added salt or sugar), orange juice, tuna (fresh, frozen or canned, but bottled tuna), yoghurt and non-fat milk.
But it warns, "If you have kidney disease or take certain blood pressure medications, a strong increase in potassium cold is detrimental.
"In that case, avoid taking potassium supplements and consult your doctor before drastically increasing your potassium intake."
So what is a normal blood pressure measurement?
NHS Choices indicates that blood pressure is recorded with two numbers. Systolic pressure (the higher number) is the power with which your heart pumps blood around your body.
The diastolic pressure (the lower number) is the resistance to the blood flow in the blood vessels. Both measured in millimeters of mercury (mmHg).
Ideal blood pressure is considered to be between 90/60 mmHg and 120/80 mmHg.
Hypertension is considered 150 / 90mmHg or higher and low blood pressure is considered 90 / 60mmHg or lower.