Navigation Links
Human Brain Has Coping Mechanism for Dehydration
Date:7/25/2014

FRIDAY, July 25, 2014 (HealthDay News) -- The human brain can preserve oxygen to protect itself from the effects of dehydration, a new study finds.

Although dehydration significantly reduces blood flow to the brain, researchers in England have found that the brain compensates by increasing the amount of oxygen it extracts from the blood.

"This research has helped us understand a lot more about how the human brain responds to extreme exercise in extreme conditions," study first author Steven Trangmar, a researcher at Brunel University, said in a university news release. "We can now see that blood flow to this vital organ is significantly affected by dehydration. But we can also see that this is when the brain kicks in, preserving its own oxygen consumption to ensure it sustains its function."

This coping mechanism is likely what enables athletes who become dehydrated during exercise to keep going. The study authors cautioned, however, that their findings should serve as a reminder of the importance of proper hydration, noting that getting enough fluids is essential for athletes who want to maintain peak performance.

"These findings show that the brain has remarkable ways of protecting itself from extreme circumstances, however they also clearly substantiate the recommendation that people should ingest fluids during exercise to help optimize physiological function and performance," Jose Gonzalez-Alonso, a professor of exercise and cardiovascular physiology at Brunel University, said in the news release.

In conducting the study, the researchers inserted catheters in the brachial artery and internal jugular vein of 10 experienced male cyclists. Using the catheters and Doppler ultrasound technology, they measured the blood flow of the cyclists as they rode a bike to exhaustion in heat.

As they became dehydrated, the cyclists developed reduced body mass, brain blood flow and ability to exercise, as well as an increase in their internal body temperature.

The findings were published recently in the Journal of Physiology.

More information

The U.S. Centers for Disease Control and Prevention offers tips on how to prevent dehydration.

SOURCE: Brunel University, news release, July 23, 2014

--


'/>"/>
Copyright©2014 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Rich Dad Education Charity Yard Sale Raises Over $650 for Habitat for Humanity of Lee and Hendry Counties
2. Human Insulin Market Worth $42 Billion by 2019 - New Report by MarketsandMarkets
3. Scientists Snipped HIV Out of Human DNA
4. Scientists Discover New Way to Make Human Platelets
5. Described novel regulator of a protein inactive in over 50 percent of human tumors
6. Human Identification Market worth $804.0 Million by 2018 - New Report by MarketsandMarkets
7. The human δ2 glutamate receptor gene is not mutated in spinocerebellar ataxia patients
8. Northeast Delta Human Services Authority Builds Upon Integrated Care Momentum
9. Team studies immune response of Asian elephants infected with a human disease
10. Oetzis non-human DNA
11. Human Outreach Project Sees Incredible Progress in the Kilimanjaro Kids Community
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Human Brain Has Coping Mechanism for Dehydration 
(Date:6/27/2016)... ... 2016 , ... "FCPX editors can now reveal their media with growing colorful ... Christina Austin - CEO of Pixel Film Studios. , ProSlice Color brings the ... can now reveal the media of their split screens with growing colorful panels. , ...
(Date:6/26/2016)... ... ... Quality metrics are proliferating in cancer care, and are derived from many ... the beholder, according to experts who offered insights and commentary in the current issue ... the full issue, click here . , For the American Society of Clinical ...
(Date:6/26/2016)... ... June 26, 2016 , ... Many women are confused ... endometriosis. These women need a treatment plan to not only alleviate symptoms and ... help for preservation of fertility and ultimately achieving a pregnancy. The specialists at ...
(Date:6/25/2016)... ... 25, 2016 , ... First Choice Emergency Room , the largest network ... the Medical Director of its new Mesquite-Samuell Farm facility. , “We are pleased ... location,” said Dr. James M. Muzzarelli, Executive Medical Director of First Choice Emergency Room. ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... A recent ... that most people are unfamiliar with. The article goes on to state that individuals ... also many of these less common operations such as calf and cheek reduction. The ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... , June 23, 2016 ... CAPR ), a biotechnology company focused on ... today announced that patient enrollment in its ongoing ... Duchenne) has exceeded 50% of its 24-patient target. ... in the third quarter of 2016, and to ...
(Date:6/23/2016)... , June 23, 2016 , ... on Thursday, July 7, 2016 , , , , LOCATION: ... , , , , EXPERT PANELISTS:  , , , ... Senior Industry Analyst, Christi Bird; Senior Industry Analyst, Divyaa Ravishankar and ... The global pharmaceutical industry is witnessing an exceptional era. ...
(Date:6/23/2016)... LONDON , June 23, 2016 ... environments  Oticon , industry leaders in ... the launch of Oticon Opn ™, the world,s ... world of possibilities for IoT devices.      ... Opn, Oticon introduces a number of ,world firsts,: ...
Breaking Medicine Technology: