Cardiology

An Aging Heart May Weaken Memory

WEDNESDAY, Nov. 8, 2017 — A decline in the pumping ability of an older person's heart can lower blood flow to their brain's memory center, new research has found.
The study involved 314 people, who averaged 73 years old and did not have heart failure, stroke or dementia. Nearly 40 percent of them had mild cognitive impairment, which increases the risk for dementia, including Alzheimer's disease.
All participants underwent tests to determine how much blood their heart pumped relative to their body size. They also had MRI scans to assess blood flow in the brain.
"Our findings show that when the heart does not pump blood as effectively, it may lead to reduced blood flow in the right and left temporal lobes, areas of the brain that process memories," said study…

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