FLASH: Do you want a daytime pick-me-up that may also benefit your blood pressure? Then take a Siesta, researchers suggest.
“Midday sleep appears to lower blood pressure levels at the same magnitude as other lifestyle changes,” said Dr. Manolis Kallistratos, a cardiologist at Asklepieion General Hospital in Voula, Greece.
For each hour you nap, systolic blood pressure drops an average of 3 mm Hg, the researchers found. Systolic pressure, the Top number in a blood pressure reading is the force of your blood pushing against your arteries when your heart beats. Diastolic pressure, the Bottom number is the force between heart beats.
Taking a low-dose blood pressure drug, for example, can lower your level an average of 5 to 7 mm Hg, while a nap can reduce overall blood pressure an average of 5 mm Hg, the study authors said.
“These findings are important because a drop in blood pressure as small as 2 mm Hg can reduce the risk of cardiovascular events, such as heart attack, by up to 10 percent,” Dr. Kallistratos said.
For the study, the investigators collected data on 212 people, average 62 anni, whose systolic pressure averaged about 130 mm Hg. About one-quarter of the participants smoked and/or had type 2 diabetes.
The researchers compared blood pressure over a day among those who napped in the middle of the day for about 49 mins with those who did not. The study also took into account factors such as consumption of alcohol, coffee, and salt, the participants’ physical activity levels, and their age, gender, and medications.
The study participants wore blood pressure monitors to track their readings during a normal 24-hr day. Over that frame, those who napped had an average systolic blood pressure more than 5 mm Hg lower than those who did not nap, the findings showed.
Overall, people who napped had more favorable readings (128.7 systolic/76.2 diastolic) than those who didn’t (134.5 systolic/79.5 diastolic), the researchers reported.
“We obviously do not want to encourage people to sleep for hours on end during the day, but on the other hand, they should not feel guilty if they can take a short nap, given the potential health benefits,” Dr. Kallistratos said in an American College of Cardiology (ACC) news release.
High blood pressure affects nearly 50% of American adults, though many don’t know they have it. High blood pressure is one of the main risk factors for heart attack and stroke.
The study findings are scheduled to be presented on 18 March at the ACC’s annual meeting, in New Orleans. Research presented at meetings is typically considered preliminary until published in a peer-reviewed journal.
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