Sunny days not only boost our mood, but they can help keep our blood pressure in check. A study published in the Journal of Investigative Dermatology found exposure to sunlight can alter the levels of nitric oxide in the skin and blood, therefore reducing the blood pressure. When exposed to sunlight, small amounts of nitric oxide are transported from the skin to the circulation lowering blood vessel tone. This decreases the risk of heart attack and stroke.
Blood pressure is written as two numbers, such as 112/78 mm Hg. The top, systolic, number is the pressure when the heart beats. The bottom, diastolic, number is the pressure when the heart rests between beats. Normal blood pressure is below 120/80 mm Hg. If you’re an adult and your systolic pressure is 120 to 139, or your diastolic pressure is 80 to 89 (or both), you have pre-hypertension. High blood pressure is a pressure of 140 systolic or higher and/or 90 diastolic or higher that stays high over time.
As blood pressure tends to vary somewhat from day to day, it’s recommended to only diagnose someone with high blood pressure if they have given a repeatedly high reading. If the average of either of the readings (either the systolic or diastolic) is higher than the norm, it will be considered an elevated blood pressure. That is, an average of 150/85 or 135/100 over readings on several occassions will be considered too high.
Having a bad day can impair our judgment and lead to most of us making not-so-wise lifestyle choices like binge eating, smoking, or drinking. These unhealthy habits done in excess can negatively affect our health, especially our blood pressure. As one in four Americans continue to suffer from the epidemic of high blood pressure, it is imperative for us to effectively avoid and reduce this highly preventable disease associated with heart attack and stroke, aneurysms, cognitive decline, and kidney failure. Fortunately, there are ways to bring down blood pressure without the use of medication.
Johns Hopkins researchers have identified the genes responsible for aortic ballooning and the sequence of events leading to aortic aneurysms. Dr. Hal Dietz currently conducts clinical trials of therapies for people with inherited aortic aneurysms to improve health and quality of life for these patients.Learn more about Dr. Deitz and his aortic ballooning therapies.
Hypertension: Usually defined as BP> 140/90, assuming the readings are taken in a doctor’s office. (There is a slightly lower cut-off if the readings are taken at home.) If only the systolic BP is high, this is called “isolated systolic hypertension.” This type of hypertension is very common in older adults, as aging is associated with both increases in systolic BP and decreases in diastolic BP.