Question 164 of 433
How much does blood pressure matter for the brain?
The short answer
A great deal. Treating blood pressure firmly in midlife is one of the best-proven ways to protect memory.
In the brain portion of the SPRINT trial, people treated to a top number of about 120 instead of 140 were 19 percent less likely to develop mild cognitive impairment. High pressure damages the tiny vessels that feed the deep parts of the brain. On an MRI we see the result as white scars, and people with more of them think and walk more slowly.
ILLUSTRATION. Picture a retired executive who thinks people have begun mumbling. At dinners he smiles rather than asking them to repeat themselves, then gradually stops accepting invitations. A hearing assessment offers a more useful question than whether he is becoming unsociable: how much of the conversation can he actually hear?
Clinical scenes in this edition are explicitly labeled illustrations. They describe imagined situations used to explain medical decisions, not documented patients, diagnoses, conversations, or treatment outcomes. They should not be read as evidence that a particular intervention works. Personal recollections are recollections, not medical records.
“This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship.” From the book’s medical disclaimer. Full disclaimer
HUMAN TRIAL — Selected hypertensive adults: intensive BP treatment reduced mild cognitive impairment; applicability and tolerance matter.Evidence grade (draft mapping)Grade pendingPart 12, Q164 · Part sources
From Longevity Unmasked by Afshine Ash Emrani, MD, FACC. Medical disclaimer. This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship. Nothing here is meant to diagnose, treat, cure, or prevent any disease. Medicine is personal: a test, drug, supplement, or exercise plan that helps one person can harm another. Do not start, stop, or change any medication or treatment because of something you read in these pages. Talk with a licensed clinician who knows your history first. If you think you are having a medical emergency, call 911. The author disclaims responsibility for any loss or harm arising from use of the information in this book.