Create Account | Sign In: Author or Forum

 
 
News  |  Journals  |  Conferences  |  Blogs  |  Articles  |  Forums  |  Twitter    
 

 Headlines:

 

Category: Hematology | Neurology | Psychiatry | Sports Medicine | Medical Students | News

Back to Health News

Evolution May Explain ‘Runner’s High,’ Study Says

Last Updated: May 09, 2012.

 

Brain reward center boost seems to spur humans, dogs to run long distances

Share |

Comments: (0)

Tell-a-Friend

 

  Related
 
Brain reward center boost seems to spur humans, dogs to run long distances.

WEDNESDAY, May 9 (HealthDay News) -- The pleasurable feeling known as "runner's high" that's triggered by aerobic exercise may have played a role in the evolution of humans' ability to run long distances, a new study suggests.

Runner's high is caused by the release of chemicals called endocannabinoids in the reward centers of the brain.

The researchers found that levels of these chemicals spiked in the blood of dogs and humans after a brisk run, but did not occur in ferrets after they exercised. Humans and dogs belong to a group of mammals built for endurance while ferrets are a sedentary species, the study authors noted.

In human volunteers, the boost in endocannabinoids after running was associated with an increase in positive emotional feelings.

"Aerobic activity has played a role in the evolution of lots of different systems in the human body, which may explain why aerobic exercise seems to be so good for us," study author David Raichlen, an assistant professor of anthropology at the University of Arizona, said in a news release from Eckerd College and the University of Arizona.

"These results suggest that natural selection may have been motivating higher- rather than low-intensity activities in groups of mammals that evolved to engage in these types of aerobic activities," he noted.

The study was published in a recent issue of The Journal of Experimental Biology.

More information

The U.S. Centers for Disease Control and Prevention has more about physical activity.

SOURCE: Eckerd College/University of Arizona, news release, May 2, 2012

Copyright © 2012 HealthDay. All rights reserved.


Previous: Response to First Treatment May Predict Epilepsy's Course Next: New Drug Shows Promise for Myeloma Patients

Reader comments on this article are listed below. Review our comments policy.


Submit your opinion:

Name:

Email:

Location:

URL:

Remember my personal information

Notify me of follow-up comments?

advertisement.gif (61x7 -- 0 bytes)
 

Are you a Doctor, Pharmacist, PA or a Nurse?

Join the Doctors Lounge online medical community

  • Editorial activities: Publish, peer review, edit online articles.

  • Ask a Doctor Teams: Respond to patient questions and discuss challenging presentations with other members.

Doctors Lounge Membership Application

 
     

 advertisement.gif (61x7 -- 0 bytes)

 

 

Useful Sites
MediLexicon
  Tools & Services: Follow DoctorsLounge on Twitter Follow us on Twitter | RSS News | Newsletter | Contact us
Copyright © 2001-2014
Doctors Lounge.
All rights reserved.

Medical Reference:
Diseases | Symptoms
Drugs | Labs | Procedures
Software | Tutorials

Advertising
Links | Humor
Forum Archive
CME | Conferences

Privacy Statement
Terms & Conditions
Editorial Board
About us | Email

This website is certified by Health On the Net Foundation. Click to verify. This site complies with the HONcode standard for trustworthy health information:
verify here.