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

  • Mt. Everest avalanche
    Disaster strikes Mt. Everest as at least 12 people were killed in an avalanche
    Video
    Watch Video
  • Most Earthlike planet discovered
    The Kepler telescope has discovered the most Earthlike, possibly habitable planet yet
    Space News
  • Easter crosses create debate
    Easter crosses spark a debate of separation of church and state in Ohio
    Headlines
  • Chelsea Clinton is preggers
    Former first daughter Chelsea Clinton is pregnant with her first child
    Headlines
  • Stanley Cup playoffs
    The battle for Lord Stanley's Cup is on, don't miss a minute of playoff action
    Sports
  • Ukraine discussed amongst U.S., E.U., Russia
    The U.S., E.U. and Russia agree on ways to diffuse the tension in Ukraine
    Video
    Watch Video

Related Videos:

  • Loch Ness
    <div class="video-info" data-id="518202054" data-param-name="playList" data-provider="5min" data-url="http://pshared.5min.com/Scripts/PlayerSeed.js?sid=1304&width=480&height=401&playList=518202054&autoStart=true"></div>
  • Gun Violence campaign gets $50 million from New York Mayor
    <iframe width="560" height="315" src="//www.youtube.com/embed/0xsaXlkiRmw?VQ=HD720&amp;autoplay=1"></iframe>
  • Family members of missing ferry passengers refuse to let them rise the ferry with cranes.
    <div class="video-info" data-id="517902149" data-param-name="playList" data-provider="5min" data-url="http://pshared.5min.com/Scripts/PlayerSeed.js?sid=1304&width=480&height=401&playList=517902149&autoStart=true"></div>

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!