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26 August, 2019 00:00 00 AM / LAST MODIFIED: 26 August, 2019 12:54:37 AM

High blood pressure in mid-30s may pose risk to brain health

BBC News Health
High blood pressure in mid-30s may pose risk to brain health

People in their mid-30s need to watch their blood pressure to protect brain health in later life, says a study.

It found the "window of opportunity" to safeguard brain health runs from then until the early-50s.

Following 500 people born in 1946, it linked higher blood pressure in early mid-life to later blood vessel damage and brain shrinkage.

Experts said high blood pressure in the "critical period" of the 30s and 40s could "accelerate damage" to the brain.

This is not the first time raised blood pressure in middle age has been linked to increased dementia risk, but the scientists wanted to understand more about when and how it might happen.

Throughout this study, published in Lancet Neurology, participants had their blood pressure measured and underwent brain scans.

Increases in blood pressure between the ages of 36 and 43 were associated with brain shrinkage.

'Accelerating damage'

Everyone's brain shrinks a little as they age, but it is more pronounced in those with neurodegenerative diseases like vascular dementia.

And while those studied did not show signs of cognitive impairment, the researchers say brain shrinkage usually precedes that - so they will be monitoring the people in the study over the coming years to watch for signs.

 

Raised blood pressure between 43 and 53 was also linked to more signs of blood vessel damage or "mini strokes" when in people reaching their 70s.

Prof Jonathan Schott, a clinical neurologist at the UCL Queen Square Institute of Neurology, led the research.

He said: "Blood pressure, even in our 30s, could have a knock-on effect on brain health four decades later. Monitoring and interventions aimed at maximising brain health later in life need to be targeted at least by early mid-life."

Prof Schott told the BBC: "NHS health checks are currently offered from the age of 40, and the uptake is, at most, 50%. Our data suggests blood pressure should be measured much earlier."

Paul Leeson, professor of cardiovascular medicine at the University of Oxford, said: "We have known for some time that people who have higher blood pressure tend to have different brain structure in later life.

"What doctors have been debating is whether treating high blood pressure in young people actually prevents these brain changes.

"The alternative, which is what we tend to do right now, is wait until later in life to start to take high blood pressure seriously because we know that by then, the more severe brain changes are definitely developing.

"These findings do support the idea that there may be critical periods in life, such as in your 30s and 40s, when periods of high blood pressure are accelerating damage within the brain."

Dr Carol Routledge, director of research at Alzheimer's Research UK, said: "High blood pressure in midlife is one of the strongest lifestyle risk factors for dementia, and one that is in our control to easily monitor and manage.

"Research is already suggesting that more aggressive treatment of high blood pressure in recent years could be improving the brain health of today's older generations.

"We must continue to build on this insight by detecting and managing high blood pressure even for those in early midlife."

 

 

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Editor : M. Shamsur Rahman

Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

Editor : M. Shamsur Rahman
Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

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