Study links brain blood flow issues to mild cognitive impairment in older adults

A new study reveals that older adults with mild cognitive impairment (MCI) experience higher resistance to brain blood flow, known as cerebrovascular impedance. This increased resistance leads to reduced blood flow, which may worsen cognitive difficulties. Researchers analyzed brain blood flow in 58 older adults with MCI and 25 without using ultrasound and blood pressure tools. They found significant differences in cerebrovascular health, indicating that vascular function is important for cognitive health in aging. The study highlights the link between cerebrovascular impedance and cognitive problems, such as memory issues and difficulty focusing. It suggests that improving blood flow could support cognitive function in older adults at risk for Alzheimer’s disease.