Blood Pressure Fluctuations Linked to Cognitive Decline in Older Adults

New research suggests that fluctuations in blood pressure may increase the risk of cognitive problems, particularly in Black older adults. The study, published in Neurology^®, found a strong association between fluctuating blood pressure and lower scores on thinking and memory tests.

Study Details

The study involved over 4,700 people with an average age of 71, comprising 66% Black participants and 34% white participants. Participants had their blood pressure monitored every three years for an average of 10 years, along with cognitive tests at the beginning and end of the study period.

Focus on Systolic Blood Pressure Variation: The study specifically examined the variation in systolic blood pressure (the top number) over time. Black participants showed a greater average variation in systolic blood pressure compared to white participants.

Key Findings

Black participants experiencing the most fluctuation in blood pressure showed significantly lower scores on cognitive tests than those with less variability. This difference was equivalent to 2.8 years of accelerated cognitive aging.

Importantly, the association between blood pressure variability and cognitive decline was not observed in participants taking blood pressure medications at the start of the study.

Implications for Public Health

“With our aging society and the growing concern about Alzheimer’s disease, finding preventive strategies to slow cognitive decline is crucial,” said Anisa Dhana, MD, MSc, study author from Rush University in Chicago. “This research suggests managing blood pressure fluctuations could be a vital risk factor to address in aging adults.”

Limitations and Future Research

The study’s findings may not be generalizable to people of other races, as the study population was predominantly Black and white. Future research is needed to explore the impact of blood pressure variability on cognitive function in diverse populations.

Want to Learn More?

Talk to your doctor about your blood pressure and how you can work together to manage it effectively. Regular monitoring and lifestyle changes can help minimize potential risks to your cognitive health as you age.