Skip to main content
  1. News
  2. Top News

Learning and memory are enhanced by ghrelin hormone

See also

Activation of the receptor for the appetite-stimulating hormone ghrelin has been found to enhance learning and memory by researchers from the University of Coimbra in Portugal and the Universidad Autónoma de Madrid in Spain in a study that was published in the Dec. 23, 2013, edition of the journal Proceedings of the National Academy of Sciences.

More Photos

When a person is hungry, the stomach releases the hormone ghrelin. Ghrelin is known to activate appetite through the release of the ghrelin receptor growth hormone secretagogue type 1a (GHS-R1a) in the hypothalamus and pituitary regions of the brain.

The researchers found that GHS-R1a activates parts of the hippocampus that are involved with the formation and storage of memories. GHS-R1a was also found to produce a chain of chemical events that activates synapse function in the brain that enhances synaptic plasticity that is thought to underlie learning and memory.

The researchers conclude that learning is enhanced by periods of fasting. The results were proven with primates and in mouse studies.

Similar reactions in humans are most probable because the brain chemistry in mice, primates, and humans as well as the physical brain structure is the same.

The enhanced learning effects were found to cease when the test animals had a meal.

This research may account for part of the differences seen in the performance of overweight and obese children in learning in school.

Advertisement

News

  • Pro-Russians killed
    Putin issues a warning after 3 armed protestors were shot dead in Ukraine
    Video
    Watch Video
  • Korean ferry capsizes
    Only one of 46 life boats were used in the South Korean ferry sinking
    World News
  • Oscar Pistorius trial
    Oscar Pistorius reads a Valentines Day card from his deceased girlfriend without tears
    Crime News
  • Google patent
    Google applies for patent for what could be the successor to Google Glass
    Tech News
  • 420 in Colorado
    Colorado will celebrate 420 for the first time since marijuana became legal
    Headlines
  • Racist Kansas murderer
    Why isn't the Jewish Community Center shooter being labeled as a terrorist?
    Video
    Watch Video

Related Videos:

  • Oscar texts
    <div class="video-info" data-id="518190292" data-param-name="playList" data-provider="5min" data-url="http://pshared.5min.com/Scripts/PlayerSeed.js?sid=1304&width=480&height=401&playList=518190292&autoStart=true"></div>
  • LAPD chief apologizes after investigation uncovers suspicious police practices
    <div class="video-info" data-id="518172713" data-param-name="playList" data-provider="5min" data-url="http://pshared.5min.com/Scripts/PlayerSeed.js?sid=1304&width=480&height=401&playList=518172713&autoStart=true"></div>
  • Metta Students Foundation awards two high school basketball teams $1,000
    <iframe width="560" height="315" src="//www.youtube.com/embed/8kB6rAbLsFo?VQ=HD720&amp;autoplay=1"></iframe>

User login

Log in
Sign in with your email and password. Or reset your password.
Write for us
Interested in becoming an Examiner and sharing your experience and passion? We're always looking for quality writers. Find out more about Examiner.com and apply today!