HOME >> BIOLOGY >> NEWS
Heart-felt stress can be more dangerous to immune system

People who react to stress more in their heart than in their vascular system are more likely to suffer immune system problems, according to a new study.

Public speaking and similar stress-inducing situations stimulate a physical reaction in two ways: The heart pumps harder and the blood vessels stiffen, leading to a rise in blood pressure. In some people the rise is mainly due to the increase in heart output, while in others it's due to the increased resistance to blood flow in the vessels.

Previous studies have shown that psychological stress acutely affects the immune system and that chronic stress can lead to a diminished capacity to fight off illness.

Cardiac reactors, as the heart-pumping contingent are known, showed changes in measures of immune system activity that were not seen in the vascular reactors, says Noha H. Farag, M.D., of the University of California, San Diego, in research published in the August issue of Brain, Behavior and Immunity.

"These findings suggest that cardiac reactors have a greater immunologic response to stress," the researchers say.

This response was seen in the redistribution of lymphocytes, a type of white blood cell that is a component of the fight-or-flight system and may effect how quickly the immune system can react to new challenges, they say. Such reactions may play a role in inflammatory diseases and heart attack.

The study included 56 healthy men and women who were monitored before and after giving two speeches based on stressful scenarios: being accused of shoplifting and confronting a car dealer who failed to honor a warranty. Blood samples were also taken to assess the immune system measures, such as lymphocyte redistribution.

"Cardiac and vascular reactors can be differentiated on the basis of immunological changes. Interestingly, it is only cardiac responders that show a significant redistribution of lymphocytes in response to stress," Farag says.


'"/>

Contact: Sue Pondrom
spondrom@ucsd.edu
619-543-6163
Center for the Advancement of Health
11-Jul-2002


Page: 1

Related biology news :

1. UCSD team determines cellular stress within body is critical
2. Genetic basis for individual variations in the response to stress
3. Memory fails you after severe stress
4. Need sex? Its probably something about stress
5. Mix of chemicals plus stress damages brain, liver in animals and likely in humans
6. Researchers-again-pinpoint why stress kills
7. Social stress adversely affects digestive function in subordinate cichlid fish
8. Hebrew University, German and British researchers develop means to help stress sufferers
9. A little stress may be good for you
10. Estrogen promotes gender differences in brains response to stress
11. Study finds new mothers are resistant to stress

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/9/2019)... ... July 09, 2019 , ... Murrieta Genomics, a ... incubator program. The founder and CEO of Tx Genetic, Helen Harrison, has spent ... suffering from epithelial connective tissue disorders. , “We are pleased and excited to ...
(Date:6/25/2019)... ... June 25, 2019 , ... ActX ... raw data, easily available from 23andMe, customers can get access to professionally reviewed ... available for both 23andMe Ancestry and Health + Ancestry customers., With the ActX ...
(Date:6/16/2019)... ... June 14, 2019 , ... Respected periodontist, Dr. ... fifth annual Neodent World Congress. Attended by thousands of dental clinicians from all ... in the world of dentistry. The three-day event featured a team of expert ...
Breaking Biology News(10 mins):
(Date:5/31/2019)... City, California (PRWEB) , ... ... ... allowance of our patent applications from the USPTO providing proprietary interest to ... AND METHOD FOR SLEEP DISORDER DIAGNOSIS AND TREATMENT… extends Somnology’s IP rights ...
(Date:5/22/2019)... ... May 22, 2019 , ... Artemis (formerly Agrilyst), the leading ... A funding round co-led by Astanor Ventures and Talis Capital ... and iSelect Fund . The company has raised $11.75m to date and will ...
(Date:5/14/2019)... TOWNSHIP, N.J. (PRWEB) , ... May 13, 2019 ... ... of custom built, helium-based leak testing instruments for the Pharmaceutical, Biotechnology, Medical Device ... new Heliumleak.com company website. The redesigned website aims to improve LDA’s ability to ...
(Date:5/4/2019)... SÃO PAULO, Brazil (PRWEB) , ... May 03, ... ... the lecture given by the President of the Dakila Pesquisas Association, the scientist ... of the Councilmen 2019, in Brasília (DF). Urandir detailed the results of some ...
Breaking Biology Technology:
Cached News: