Featured Research

from universities, journals, and other organizations

Rush Of Blood To The Head: Anger Increases Blood Flow

Date:
July 4, 2009
Source:
BioMed Central
Summary:
Mental stress causes carotid artery dilation and increases brain blood flow. A series of ultrasound experiments also found that this dilatory reflex was absent in people with high blood pressure.

Mental stress causes carotid artery dilation and increases brain blood flow. A series of ultrasound experiments also found that this dilatory reflex was absent in people with high blood pressure.

Related Articles


Tasneem Naqvi and Hahn Hyuhn from the University of Southern California and Cedars-Sinai Medical Center evaluated carotid artery reactivity and brain blood flow in response to mental stress in 10 healthy young volunteers (aged between 19 and 27 years), 20 older healthy volunteers (aged 38 to 60 years) and in 28 patients with essential hypertension (aged 38 to 64 years). They found that in healthy subjects, mental stress caused vasodilation. This was accompanied by a net increase in brain blood flow. In hypertensive subjects, mental stress produced no vasodilation and no significant change in brain blood flow.

During the experiments, the volunteers were set a series of tasks designed to provoke mental stress, including reading, arithmetic and anger recall tests. The researchers used ultrasound imaging to measure the effects of this activity on the carotid artery and an artery within the brain, while also measuring blood pressure and heart rate.

According to Naqvi, "Inappropriate vasoconstriction, or lack of dilation in response to mental stress in stable coronary heart disease, contributes to the genesis of myocardial ischemia and confers an increased risk in patients with coronary artery disease. It will be interesting to see whether the lack of mental stress induced dilation we found defines subjects at increased risk of future cerebral events." Lack of required blood flow increase to the brain during mental activities may potentially affect cognition and cerebral performance during complex cerebral tasks.


Story Source:

The above story is based on materials provided by BioMed Central. Note: Materials may be edited for content and length.


Journal Reference:

  1. Tasneem Z Naqvi and Hahn K Hyuhn. Cerebrovascular mental stress reactivity is impaired in hypertension. Cardiovascular Ultrasound, (in press) [link]

Cite This Page:

BioMed Central. "Rush Of Blood To The Head: Anger Increases Blood Flow." ScienceDaily. ScienceDaily, 4 July 2009. <www.sciencedaily.com/releases/2009/07/090703065222.htm>.
BioMed Central. (2009, July 4). Rush Of Blood To The Head: Anger Increases Blood Flow. ScienceDaily. Retrieved November 25, 2014 from www.sciencedaily.com/releases/2009/07/090703065222.htm
BioMed Central. "Rush Of Blood To The Head: Anger Increases Blood Flow." ScienceDaily. www.sciencedaily.com/releases/2009/07/090703065222.htm (accessed November 25, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Tuesday, November 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com
Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Newsy (Nov. 25, 2014) Need another reason to eat yogurt every day? Researchers now say it could reduce a person's risk of developing type 2 diabetes. Video provided by Newsy
Powered by NewsLook.com
Madagascar Working to Contain Plague Outbreak

Madagascar Working to Contain Plague Outbreak

AFP (Nov. 24, 2014) Madagascar said Monday it is trying to contain an outbreak of plague -- similar to the Black Death that swept Medieval Europe -- that has killed 40 people and is spreading to the capital Antananarivo. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Are Female Bosses More Likely To Be Depressed?

Are Female Bosses More Likely To Be Depressed?

Newsy (Nov. 24, 2014) A new study links greater authority with increased depressive symptoms among women in the workplace. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins