High blood pressure is not an illness in itself but it can have serious consequences. It leads to a change in the arteries: the walls of the large arteries become harder and lose their elasticity and the small arteries thicken, which reduces their capacity to dilate when adapting to the needs.
High blood pressure that is not detected and treated can cause abnormalities leading to poor blood flow to the heart, brain or kidneys.
People with high blood pressure are therefore more likely to suffer from heart failure, heart attack or stroke.
High blood pressure can also be the root cause of injuries to the retina as the blood vessels have become more fragile, and in some extreme cases, can result in total loss of eyesight.