If a blockage happens to an artery supplying blood to the heart, for insance, it can cause a heart attack. But if it happens in an artery to the brain, it can cause a stroke - a sudden brain injury which may permanently or temporarily affect movement and speech. The only way is to ask your doctor to check it for you regularly. The serious effects of high blood pressure usually develop only after it has been high for a number of years - in the meantime, there are no symptoms to warn you. But regular checks mean it' s possible to detect rising blood pressure before it does any damage.
Regular checks are especially important for people who have a family history of high blood pressure.
By knowing how to prevent high blood pressure, adults of all ages can reduce their risk of heart disease and stroke. Some people need medication to control blood pressure. But sometimes it's possible to lower blood pressure just by changing habits - losing weight, eating a healthier diet, being more active and reducing the amount of alcohol you drink. Again, by making changes to your lifestyle. If you're overweight, begin by losing some extra kilos.