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:1/20/2017)... ... 20, 2017 , ... Vitamin Well has launched two new ... have been produced in collaboration with Zlatan Ibrahimovic and have been developed to ... a successful launch in Sweden last year, the next generation sports drinks VW+001 ...
(Date:1/20/2017)... ... 20, 2017 , ... “Code Word: Chocolate Biscuit”: a biographical account following a man who went ... creation of published author, Marlyn Ivey, born in Lynn Haven, Florida and at the age ... at 19 years of age, he joined the Navy and got married right out of ...
(Date:1/20/2017)... , ... January 20, 2017 , ... “Christmas in Suffolk”: ... of published author, Sara Seymour, who lives in Lafayette, Indiana where she works in ... on iced coffees and writes. , Published by Christian Faith Publishing, Sara Seymour’s new ...
(Date:1/20/2017)... ... ... Land of More and More”: a brilliant story for children and adults alike ... achievable answer. “The Land of More and More” is the creation of published author, ... where he works with the children’s ministry department. , Michael says that he ...
(Date:1/19/2017)... ... January 19, 2017 , ... ... an On-demand E-learning system for Clinical and Regulatory education for Physicians, Physician ... on Aerolib`s successful education methodology of Disease Specific Documentation Improvement. , The ...
Breaking Medicine News(10 mins):
(Date:1/20/2017)... , Jan. 20, 2017  Palladian Health, ... has announced the launch of an opioid management ... guidelines on opioids and helps stem the growing ... often prescribed to treat chronic non-cancer pain (back ... serious risks and lack of evidence regarding long-term ...
(Date:1/19/2017)... 2017 The global immunomodulators market is ... according to a new study by Grand View ... predominantly driven by high R&D investments employed by ... of new and therapeutically advanced drugs. This is ... an unprecedented rate into the immunomodulators market hence ...
(Date:1/19/2017)... 19, 2017 Report Details ... Alzheimer,s Disease ... Companies – our new study reveals trends, R&D progress, ... events affecting the Alzheimer,s disease therapeutics and diagnostics market. ... key questions: - How is the Alzheimer,s disease therapeutics ...
Breaking Medicine Technology: