- A new study links reducing blood pressure with lower risk of heart attack and stroke
- Exercising and reducing salt can get blood pressure into the normal range
- Patients taking several blood pressure medications may be able to add more
(CNN)Doctors have long known that systolic blood pressure below 120 was considered normal and meant a lower risk of heart disease and kidney problems. But they would often only treat patients if that top number crept above 140, the threshold for officially having high blood pressure.