A new study by the University of California San Diego shows a substantially greater risk of stroke for many people who have pre-hypertension,a precursor condition to hypertension,or high blood pressure.The study considered 12 previous studies covering more than 500,000 patients.
Pre-hypertension is a blood pressure greater than 120/80,but less than 140/90,which is hypertension proper.Until this new study was published in the journal Neurology,the amount of risk pre-hypertension posed was unclear.For those younger than 65,the study shows,even a slightly high blood pressure of 121/81 increases stroke risk by 22%.A blood pressure of from 130-139/80-89 increased stroke risk nearly 80%.In general,those with a blood pressure of 120-139/80-89,the range for pre-hypertension,had a 55% greater risk of having a stroke than the rest of the population.
The data for those over 65 did not yield the same result-probably because their stroke risk is determined by other factors,such as other medical conditions they may have.
It is also now believed that patients with pre-diabetes,the precursor condition to diabetes,in which the blood sugar is only somewhat elevated,also may be experiencing significant health impacts.It seems that chronic disease is more of a continuum than was previously understood.
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