People with untreated high blood pressure have shown an increased risk of Alzheimer’s. The study author explains why treating high blood pressure is a 'crucial factor' in reducing dementia risk.
The risk of Alzheimer’s disease could escalate along with high blood pressure, according to a new study. Published in the medical journal Neurology, the research found that people age 60 and older who have untreated high blood pressure may be more likely to develop the common dementia type. Although the results don’t prove that untreated high blood pressure causes the disease, they do show an association, the American Academy of Neurology stated in a press release.
Study author Matthew J. Lennon, M.D., PhD, of the University of New South Wales in Australia, wrote in a statement that high blood pressure is a 'leading cause of stroke and cerebrovascular disease, and yet it can be controlled with medication, reducing a person’s risk of these diseases.' While previous research has found that taking blood pressure medications can reduce dementia risk, according to Lennon, less is known about the condition's impact on Alzheimer’s risk.
The researchers analyzed 31,250 people averaging 72 years old who were involved in studies measuring cognitive change and dementia diagnosis over time, the release stated. After four years, 1,415 of those individuals developed Alzheimer’s disease. People with untreated high blood pressure had a 36% increased risk of Alzheimer’s compared to those without the condition, the study found.
We have long known that high blood pressure, high cholesterol and high glucose levels — as well as obesity, smoking and alcohol use — contribute to increased risk of heart attack, stroke and vascular dementia,' she told Fox News Digital. 'This new study also finds a decreased risk of Alzheimer’s disease among those treated for hypertension.
Hypertension is extremely common, affecting two-thirds of those over age 65 and around 1.3 billion people worldwide, Lennon noted. 'In the vast majority of cases, it is clinically silent, causing no symptoms until you present with a heart attack, a stroke, or — as we now have shown — dementia,' Lennon said. Only 28% of those with high blood pressure have it under adequate control, he noted.
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