70yr old dad has bp of 166/100. is this severely high? he eats healthy. dr. gave 5mg norvasc (amlodipine). he does not like to take drugs. any natural way to lower

Stay healthy: first the diastolic is high but not extremely high. untreated high blood pressure, could lead to cardiac and kidney problems. your DAD can exercise, lose weight, hydrate very well 6-8 bottles of water a day. no salt diet, eat healthy. monitor BP, still might have to take some medicine, the goal is to keep the BP in healthy level to avoid heart and kidney complication.