Is 120 over 40 blood pressure good for 72 year old female?

120/40 is not a healthy blood pressure for any adult, regardless of age. Blood pressure is considered normal when systolic pressure (the top number) is between 90 and 120 mm Hg and diastolic pressure (the bottom number) is between 60 and 80 mm Hg. A blood pressure of 120/40 would be considered low and could indicate a medical condition such as dehydration, malnutrition, or anemia. It is important to see a doctor to determine the cause of the low blood pressure and to get treatment if necessary.