Previous research has no doubt studied the effects of different seasons on blood pressure; but a recent study is age-specific in its results and has opined that cold weather may unduly raise an older adults' BP.
Previous research has shown that blood pressure changes with the seasons, but few studies have looked specifically at old people.
High Blood Pressure
High blood pressure or hypertension is defined as a blood pressure of above 140 mm Hg (systolic) and or 90mm Hg (diastolic).
High blood pressure or hypertension is defined as a blood pressure of above 140 mm Hg (systolic) and or 90mm Hg (diastolic).
Participants' blood pressure was measured at the beginning of the study (starting in 1999) and again about two years later. Outdoor temperatures on the day of measurement were obtained from local meteorological offices.
Both systolic (top-number) and diastolic (bottom-number) blood pressures differed across the four seasons and across the distributions of outdoor temperatures.
Vertigo / Dizziness - Causes - Symptoms - Diagnosis - Treatment - FAQ
Vertigo is a common symptom of any disorder of brain or inner ear. It may be accompanied by vomiting and sweating. Inner ear involvement can cause deafness.
Vertigo is a common symptom of any disorder of brain or inner ear. It may be accompanied by vomiting and sweating. Inner ear involvement can cause deafness.
High blood pressure-defined as a systolic blood pressure of 160 millimeters of mercury or higher, or a diastolic blood pressure of 95 millimeters of mercury or higher-was detected in 33.4 percent of participants during winter and 23.8 percent during summer.
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Blood Pressure Chart
Blood pressure is the pressure of the blood flowing through your blood vessels against the vessel walls. Just by entering you age, you can get the accurate range of blood pressure value.
Blood pressure is the pressure of the blood flowing through your blood vessels against the vessel walls. Just by entering you age, you can get the accurate range of blood pressure value.
"The higher the temperature at follow-up compared with baseline, the greater the decrease in blood pressure," the authors said.
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"Mechanisms that could explain the association between blood pressure and temperature remain undetermined," the authors said.
The researchers suggest that the sympathetic nervous system (which helps control involuntary actions, such as stress response) is activated and the hormone catecholamine is released in response to cold temperatures, which may increase blood pressure by speeding the heart rate and decreasing the responsiveness of blood vessels.
"Although our study does not demonstrate a causal link between blood pressure and external temperature, the observed relationship nevertheless has potentially important consequences for blood pressure management in the elderly," the authors said.
The study is published in the January 12 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.
Source-ANI
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