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Can Your Blood Pressure Be Normal Yet Unstable? Scientists Find A Brain Connection

Blood Pressure Monitoring

You get your <span>blood pressure</span> checked. The reading is normal and you walk out relieved. But a new study from the <span>University of Virginia</span> suggests that one number may not tell the full story. 

How steady your blood pressure stays through the day could matter as much as the average.

According to a statement from UVA Health, scientists at the University of Virginia School of Medicine found a small group of nerve cells in the brainstem that act like a stabiliser for blood pressure. 

The brainstem runs the body’s automatic functions like breathing and heart rate. These <a href="https://www.healthandme.com/health-wellness/sickle-cell-disease-why-india-must-add-curative-treatment-to-meet-its-2047-elimination-goal-article-154672434" data-type="tilCustomLink" target="_blank">cells</a> appear to stop pressure from swinging too far when we sleep, wake up, stand or exercise. 

The work was published in the journal <em>Circulation Research</em> in January 2026. Funding came from the US National Institutes of Health, and the researchers reported no financial interests in the work.

The experiments were done in rats, according to the study’s preprint. When the team removed just a few hundred of these cells, average blood pressure stayed normal, but it became extremely unstable during waking and movement. 

Lead researcher Stephen Abbott said in the UVA statement that the message is “not just about lowering the numbers.” It is about keeping pressure steady from moment to moment.

<h2>Role Of Nerve Cells In Stabilising BP</h2>

UVA says these same cells are damaged or missing in people with multiple system atrophy, a rare and fatal <a href="https://www.healthandme.com/health-wellness/rebuilding-your-brain-health-5-steps-you-should-take-according-to-doctor-article-153191108" data-type="tilCustomLink" target="_blank">brain</a> disease related to <a href="https://www.healthandme.com/health-news/parkinsons-is-rising-across-us-but-not-equally-why-are-some-states-seeing-more-cases-than-others-article-156027976" data-type="tilCustomLink" target="_blank">Parkinson’s</a>. It causes severe blood pressure problems. The team suggests similar brain mechanisms could play a role in other conditions where the average reading looks fine.

Human research already points the same way. A 2013 study by Leiden University Medical Center, University College Cork and the <span>University of Glasgow</span> found that bigger swings between clinic visits were linked to worse scores on thinking tests and a higher stroke risk in older people already at high heart risk. 

This held even after accounting for average blood pressure. Another study, using data from the ASPREE trial in older adults and published in the <em>Journal of the American Heart Association</em>, linked higher variability to a greater risk of dementia and cognitive decline, again independent of average pressure.

Also Read: <a href="https://www.healthandme.com/health-news/richard-nortons-peptide-linked-death-raises-safety-concerns-as-rfk-jr-eases-us-restrictions-bypassing-us-fda-article-156426062" data-type="tilCustomLink" target="_blank">Richard Norton’s Peptide-Linked Death Raises Safety Concerns As RFK Jr. Eases US Restrictions, Bypassing US FDA</a>

These studies show a link, not proof of cause. A 2021 analysis of the SPRINT MIND trial, also in that journal, said more research is needed to learn how to reduce variability and whether doing so lowers the risk.

<h2>Importance Of Steady Blood Pressure </h2>

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This was an animal study, and the researchers describe it as a possible route to future treatments. UVA says the work fits the aims of its new Manning Institute of Biotechnology, which wants to move lab findings to patients faster. For now, no test or drug targets these brain cells. Nobody should stop or change medicines because of it.

The <span>World Health Organization</span> says 1.4 billion adults aged 30 to 79 had high blood pressure in 2024, and about 600 million of them did not know it. 

WHO calls hypertension a major cause of premature death. So the first step has not changed. Get your blood pressure checked regularly and follow your doctor’s advice. If you often feel dizzy or faint when you stand up, mention it at your next visit. Science is slowly learning that healthy blood pressure is not only a low number. It is a steady one.

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You get your blood pressure checked. The reading is normal and you walk out relieved. But a new study from the University of Virginia suggests that one number may not tell the full story. How steady your blood pressure stays through the day could matter as much as the average.What The Researchers FoundAccording to a statement from UVA Health, scientists at the University of Virginia School of Medicine found a small group of nerve cells in the brainstem that act like a stabiliser for blood pressure. The brainstem runs the body’s automatic functions like breathing and heart rate. These cells appear to stop pressure from swinging too far when we sleep, wake up, stand or exercise. The work was published in the journal Circulation Research in January 2026. Funding came from the US National Institutes of Health, and the researchers reported no financial interests in the work.The experiments were done in rats, according to the study’s preprint. When the team removed just a few hundred of these cells, average blood pressure stayed normal, but it became extremely unstable during waking and movement. Lead researcher Stephen Abbott said in the UVA statement that the message is “not just about lowering the numbers.” It is about keeping pressure steady from moment to moment.Role Of Nerve Cells In Stabilising BPUVA says these same cells are damaged or missing in people with multiple system atrophy, a rare and fatal brain disease related to Parkinson’s. It causes severe blood pressure problems. The team suggests similar brain mechanisms could play a role in other conditions where the average reading looks fine.Human research already points the same way. A 2013 study by Leiden University Medical Center, University College Cork and the University of Glasgow found that bigger swings between clinic visits were linked to worse scores on thinking tests and a higher stroke risk in older people already at high heart risk. This held even after accounting for average blood pressure. Another study, using data from the ASPREE trial in older adults and published in the Journal of the American Heart Association, linked higher variability to a greater risk of dementia and cognitive decline, again independent of average pressure.Also Read: Richard Norton’s Peptide-Linked Death Raises Safety Concerns As RFK Jr. Eases US Restrictions, Bypassing US FDAThese studies show a link, not proof of cause. A 2021 analysis of the SPRINT MIND trial, also in that journal, said more research is needed to learn how to reduce variability and whether doing so lowers the risk.Importance Of Steady Blood Pressure    This was an animal study, and the researchers describe it as a possible route to future treatments. UVA says the work fits the aims of its new Manning Institute of Biotechnology, which wants to move lab findings to patients faster. For now, no test or drug targets these brain cells. Nobody should stop or change medicines because of it.The World Health Organization says 1.4 billion adults aged 30 to 79 had high blood pressure in 2024, and about 600 million of them did not know it. WHO calls hypertension a major cause of premature death. So the first step has not changed. Get your blood pressure checked regularly and follow your doctor’s advice. If you often feel dizzy or faint when you stand up, mention it at your next visit. Science is slowly learning that healthy blood pressure is not only a low number. It is a steady one.

normal blood pressure readings may not tell the full story, study finds

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