<s>[INST] What are the consequences of hypertension if it is not controlled? [/INST] If high blood pressure is not reduced to normal values, then it can cause damage to the brain, heart, eyes or kidneys. This damage may prove fatal or cause permanent disability. Therefore, it is essential that patients strictly follow the treatment throughout their entire lifetime. Source: clinicbarcelona.org. Link: https://www.clinicbarcelona.org/en/assistance/diseases/high-blood-pressure/frequently-asked-questions. Field: Cardiovascular. Disease: Hypertension </s>