Elevated blood pressure for many reasons, including the unhealthy lifestyle and patients do not pay attention to. A recent study shows that, even if you managed to noisy night sleep, your body still in the unconscious state record what you bear the noise, and to increase blood pressure shown by way of.
The study on a night flight 4 main airport in Europe -- London Airport, Athens Airport, Stockholm Airport and Italy Greece Sweden Milan airport as study sites, please live near the airport volunteers participated in the study. This study published in the latest issue of " European Heart Journal ( EuropeanHeartJournal ). ".
The people in the study with ambulatory blood pressure monitor, researchers use these monitors, at night every 15 minutes to observe the change of blood pressure during sleep research object. The research object of the room is also equipped with a MP3 recorder and noise meter, recording ambient noise volume and duration.
The researchers believe that, when from road traffic, aircraft landing or companion snoring noise over 35 dB, then a " noise event " occurs, residents of the blood pressure can rise abruptly. 35 dB is a very high threshold, think about it, 3 feet to outsiders whisper is 30 dB, refrigerator hum is 40 dB, talking loudly is 60~70 db. Object of study bedroom measured noise levels in the 30~40 and 80~90 dB between fluctuant, equivalent to a food mixer volume. The researchers found that, a person's blood pressure with a noise to rise, even this noise and inadequate to wake up the sleeping people.
Whether the voice from where -- from airport runway or the other side of the bed, human blood pressure response are consistent. For example, aircraft noise can be caused by a mean of 6.2 mm Hg systolic blood pressure ( SystolicBloodPressure, SBP, systolic blood pressure increased maximum ), and 7.4 mm Hg diastolic blood pressure ( DiastolicBloodPressure, DBP, diastolic blood pressure increases the minimum ). Snoring companion and traffic noise has a similar effect, and the effect and volume, and dependent on volume. The louder the noise, the more elevated blood pressure. Aircraft noise for each additional 5 decibel volume, systolic and diastolic blood pressure of 0.65 mm Hg all rise. Imperial College London of London ( ImperialCollegeLondon ) environment and occupation medicine expert Lars Jarup ( Dr.LarsJarup ) said: " obviously, blood pressure rise rate is small, but it has the meaning of be no trivial matter. "
The new report is the same team undertook more large-scale research after the inevitable result. This study examines the hypertension and nocturnal aircraft noise and daytime suffered from traffic noise disturbance and the relationship between. The study reported last December, published in the online " environmental health perspectives " ( EnvironmentalHealthPerspectives ), study involved 4861 participants aged 45 years to 70 years old, living in Europe and a major airport in the vicinity of at least five years. Research shows, long-term residence in the residents near the airport, flight movements during sleep are vulnerable to the effects of noise, the noise above 35 dB, make the blood pressure rises rapidly, long-term health risks, have a higher risk of hypertension.
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