Older people with high pulse pressure are at risk of developing Alzheimer's disease, a new study suggests. Blood pressure data and spinal fluid analyses were collected from 177 patients, and those ages 55 to 70 with higher pulse pressure were more likely to have AD biomarkers in their cerebral spinal fluid, according to the study in the journal Neurology. "These results suggest that the forces involved in blood circulation may be related to the development of the hallmark Alzheimer's disease signs that cause loss of brain cells," said researcher Daniel A. Nation.

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