The most common symptoms of insufficient blood supply to the brain due to low blood pressure are dizziness, nausea, vomiting, and in severe cases, weakness of the limbs and balance disorders may occur. Low blood pressure will have insufficient perfusion, and since the head is in the highest position of the body, the insufficient blood supply will be more obvious, and often there will be dizziness, headache, blurred or darkened vision, nausea, vomiting, lack of concentration, easy to be fatigued, and other symptoms, and in serious cases, patients may also have fainting, weakness of limbs, memory loss, balance disorders, and falls. If it is clear that the cerebral blood supply is insufficient due to low blood pressure, it must be actively treated under the guidance of the doctor, diligently measure blood pressure in daily life, pay more attention, if there is dizziness immediately sit down or lie down to avoid falling, if there is obvious discomfort go to the hospital as soon as possible to consult the doctor, and actively treat it, so as to avoid delaying the condition.