blood pressure hypertensionhigh blood pressure is defined as a pressure of 140/90 mmhg or higher in the arteries. disordersthere are several types of thyroid disorders including hypothyroidism, hyperthyroidism, goiters, thyroid nodules, and thyroid cancer. a lower blood pressure can reduce the risk of strokes and heart attacks. gradually stopping this medication, it is recommended that you temporarily limit physical activity to decrease strain on the heart. this can damage the blood vessels of the brain, heart, and kidneys, resulting in a stroke, heart failure, or kidney failure. migraines are diagnosed by a doctor if the headache pattern fits established migraine headache criteria.