Navigation Links
Hypertension Might Hinder Thinking
Date:12/15/2008

Brainpower slowed on days when blood pressure shot up, study found

MONDAY, Dec. 15 (HealthDay News) -- Sudden surges in blood pressure could make seniors with chronic hypertension a little less smart, new research suggests.

"If you have high blood pressure, on days when your blood pressure spikes higher than normal, cognitive ability is worse than normal," concluded lead researcher Jason Allaire, an assistant professor of psychology at North Carolina State University, in Raleigh.

Whether high blood pressure itself is responsible for the decline in reasoning or whether it's a marker for other factors, such as stress, that result in impaired thinking isn't known. But it's another reason to keep your blood pressure down, experts said.

"This finding suggests that if you have high blood pressure that is not controlled, your cognitive abilities are going to decline faster as you get older," Allaire said.

The report is published in the Dec. 15 issue of the Journal of Gerontology: Psychological Sciences.

For the study, the researchers had 36 people between 60 and 87 years of age take verbal learning tests, letter and number comparison tests, and other cognitive exams. The tests were given twice a day over 60 days. The researchers also measured the participants' ongoing blood pressures.

They found that people with chronic high blood pressure tended to do poorly in cognitive tests when their blood pressure spiked above normal.

However, there was no change in cognitive functioning among people whose average blood pressure was in the low or normal range, even when their blood pressure did rise above normal, Allaire's group noted.

It is possible that chronic high blood pressure could cause problems with cognition, Allaire said, or that spikes in blood pressure could cause changes in the brain that affect thinking.

The findings could also indicate that the stress behind the spike in pressure might cause changes in cognitive function. "So, blood pressure spiking is a marker, and it is actually the stress that's causing worse cognitive ability," Allaire explained.

Dr. Byron Lee, an assistant clinical professor of cardiology at the University of California San Francisco, remained skeptical of a hypertension-thinking link.

"This paper does not convince me that lowering blood pressure would improve cognition," Lee said. "My interpretation of the data is that lowering stress, which will also lower blood pressure, leads to better mental performance. Nevertheless, we already have plenty of health reasons to keep blood pressure low."

Dr. Sarwat Chaudhry, an assistant professor of medicine at Yale University School of Medicine, said more study is warranted.

"Whether daily variations in blood pressure within individuals are associated with reasoning abilities will need to be confirmed in larger studies that also examine the role of emotional stress in causing elevations in blood pressure, and perhaps affecting intellectual performance," Chaudhry said.

In related research, another study finds that popular no-carb or low-carb diets are linked to memory problems.

The results of the study, which are published in the February issue of Appetite, showed that people who eliminated carbohydrates from their diet performed worse on memory tasks.

This decline in cognitive ability didn't happen when calories were reduced generally -- only when carbohydrates were dropped. When individuals started eating carbohydrates again, memory function returned to normal, the researchers found.

"This study demonstrates that the food you eat can have an immediate impact on cognitive behavior," lead author Holly A. Taylor, a professor of psychology at Tufts University in Boston, said in a university news release. "The popular low-carb, no-carb diets have the strongest potential for negative impact on thinking and cognition."

More information

For more information on high blood pressure, visit the American Heart Association.



SOURCES: Jason Allaire, Ph.D., assistant professor, psychology, North Carolina State University, Raleigh; Sarwat Chaudhry, M.D., assistant professor, medicine, Yale University School of Medicine, New Haven, Conn.; Byron Lee, M.D., assistant clinical professor, cardiology, University of California, San Francisco; Dec. 15, 2008, Journal of Gerontology: Psychological Sciences; Dec. 11, 2009, news release, Tufts University


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Daiichi Sankyo, Inc. Awarded Prestigious NCQA Certification for National Under Pressure(TM) Hypertension Management Program
2. Downgraded Tier Positions and Step Therapy Restrictions Have Stalled Exforges and Tekturnas Growth in The Hypertension Drug Market
3. Pulmonary Hypertension Treated with Stem Cells : International Medical Team Announces Patient Results in Adult Stem Cell Clinical Study for Pulmonary Hypertension
4. Hypertension May Hit Black Males Earlier
5. Lipoprotein Levels May Predict Womens Hypertension Risk
6. Poor Sleep, Hypertension a Dangerous Combination
7. Diabetes, Hypertension Hasten Death in Alzheimers Patients
8. Viagra Bulk Effectively Cures Children with PAH (Pulmonary Arterial Hypertension)
9. Women at Higher Risk for Pulmonary Hypertension
10. Cialis May Help Ease Pulmonary Hypertension
11. Penn researchers use honeybee venom toxin to develop a new tool for studying hypertension
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Hypertension Might Hinder Thinking
(Date:5/27/2016)... ... May 27, 2016 , ... This campaign aims to ... which we as a society can control and change. , As nearly 795,000 Americans ... 40 seconds within the United States. Plus, with an estimated 129,000 of these people ...
(Date:5/27/2016)... New York, NY (PRWEB) , ... May 27, ... ... health care world, this installment is bolstered by inspiring human interest stories, courtesy ... to the developing trends and tech within the industry, from leading advocates and ...
(Date:5/26/2016)... ... ... last week’s media reports hinting at a June rate hike after the Federal Reserve’s ... interest rate increase, according to Rajeev Dhawan of the Economic Forecasting Center at Georgia ... (FOMC) dot charts are of interest to the press for their noise potential,” Dhawan ...
(Date:5/26/2016)... ... May 26, 2016 , ... Intalere, the healthcare industry ... for its inaugural Member Conference at the Paris Hotel in Las Vegas, Nev., ... health of America’s healthcare providers. , The conference was highlighted by the announcement ...
(Date:5/26/2016)... ... May 26, 2016 , ... The Woodlands at ... offering a new model of care for living and healing, celebrated its grand opening, ... Life in a Real Home provided by Empowered Staff. , “This is an incredibly ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)... , May 24, 2016 Cirujanos ... para ayudar a los médicos a compartir sus mejores ... a escala mundial. Profesionales médicos de Europa, África, ... han apuntado a la aplicación, que combina la transmisión ... entorno totalmente seguro. Educación   "Imagine ...
(Date:5/24/2016)... , May 24, 2016  NxStage Medical, Inc. ... company focused on advancing renal care, today announced that ... to participate in the following schedule of investor conferences. ... made available at http://ir.nxstage.com/ .   ... Jefferies Healthcare Conference NY, NY           Friday, June 10, ...
(Date:5/24/2016)... 2016 Les ... la première endoprothèse à double thérapie au ... portant sur les membres inférieurs et la ... entreprise mondiale spécialisée dans la fourniture de ... a élargi son portefeuille pour inclure des ...
Breaking Medicine Technology: