High blood pressure, or hypertension, is the leading risk factor for heart disease and stroke. Damage to your blood vessels occurs every time your pressure is elevated, and the new guidelines are meant to help people become more aware earlier.  And through earlier awareness, it may help prevent the damage that would occur if you waited for a later diagnosis.
Cold-water fish. Increasing serum measurements of DHA/EPA, markers of fish intake, are related to lower blood pressure (12, 13, 14). However, steer clear of most fish oil supplements and instead have patients obtain beneficial nutrients from whole foods whenever possible. A recent analysis showed that the three top-selling fish oils in the United States contained oxidized lipids that may be causing more harm than good (15). Beyond DHA and EPA, fish also have selenium, zinc, iron, and a highly absorbable protein that also may reduce blood pressure (16). Aim for cold-water fatty fish three times a week.
I have had “pre hypertension” with BPs of 135/90. I started a twice a day meditation/deep breathing practice, and an attitude shift away from “being busy”, and my BP fell to the 110/70 range. This process works. I am a physician myself. Go for it. Don’t fall for the myth that everyone has to be on physician prescribed medications for virtually every health issue in the galaxy.
Sleep. Short and poor-quality sleep are both associated with raised blood pressure (40). On the other side of the spectrum, excessively long sleep may also be harmful. One study found increased blood pressure in those who got fewer than five hours of sleep per night and in those who averaged more than nine hours of sleep per night, when compared with people who slept around seven hours (41). I suspect that it’s not the long sleep itself that is the problem, but that some underlying condition is both increasing sleep requirement and raising blood pressure.