Home     Contact     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS     Terms of services     Privacy policy  
 Home      Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science   

<< Back to INDEX

Licking a wound is a natural instinct - [Random Knowledge #49]
posted April 30 2013 20:11.22 by Giorgos Lazaridis

The instinctive licking of a wound is deeply programmed into our brain and probably dates back to our oldest ancestors. Many animals have also this "weird" response to lick an injury, like dogs, cats, rodents and primates.

Researchers at the University of Florida at Gainesville have discovered a protein called nerve growth factor (NGF) in the saliva of mice. This protein can heal a wound twice as fast as an untreated one, which explains why mice lick their wounds.

Humans on the other hand do not have this protein (or probably lost it through time). Nevertheless, researchers discovered antibacterial agents as secretory IgA, lactoferrin, lysozyme and peroxidase. Although it has not been shown that licking a wound will disinfect it, it certainly helps to remove larger contaminants such as dirt.

Photo: wikipedia

You might also like...

Why do we see illusions? [Brain hack]

How ferrite beads can filter out EMI [Electronics]

How atomic bomb works and why it is hard to make [Video]

Why phone echo breaks your speech? [Brainhack]

Food Mold - The good, the bad and all ugly [Health]

How much does light weight? [Physics]

Everything you need to know about Battery Ratings [Theory]

The [im]possible puzzle [Riddles]

<< Back to INDEX



  Email (shall not be published)


Notify me of new posts via email

Write your comments below:
BEFORE you post a comment:You are welcome to comment for corrections and suggestions on this page. But if you have questions please use the forum instead to post it. Thank you.


No comment yet...

Be the first to comment on this page!

 Contact     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS   

Site design: Giorgos Lazaridis
© Copyright 2008
Please read the Terms of services and the Privacy policy