"Time is muscle" means that if you wait too long to treat a heart attack, there could be permanent damage to your heart. Seek treatment for any signs of a heart attack, such as chest or jaw pain or shortness of breath.
Optimal blood pressure is less than 120/80 mm Hg (systolic pressure is 120 AND diastolic pressure is less than 80). Prehypertension is systolic pressure from 120-139 systolic OR diastolic pressure from 80-89. High blood pressure is systolic pressure of 140 or higher OR diastolic pressure of 90 or higher.