PLEASE NOTE:

MyNews24 is a user-generated section of News24.com. The stories here come from users.

 
Mawethu Bilibana
 
Comments: 14
Article views: 2709
 
 
Latest Badges:

 
View all Mawethu Bilibana's badges.
 

Men use alcohol as a substitute for sex

16 March 2012, 19:34

In the world many people have some perception that heavy drinking and sex go hand. However, a team of researchers at UC San Francisco have revealed on their publication in the latest issue of Science.

Their study concluded that male fruit flies get frustrated to sexual rejection.

When their attempts at courtship fail, the spurned male flies will actually turn to booze as a substitute for sex. Understanding this kind of behaviour, one could allow us humans to sort out some of our own dependencies.

Fruit flies are very sexual beings. Put a randy male fly in close quarters with a female, and (provided the male does a halfway decent job of wooing his counterpart) the two will copulate.

Things pan out a little differently, however, if the female has already mated. If this is the case, she will refuse the male's advances at all costs including running away, kicking, and even thrusting out herovipositor (an organ typically used for egg-laying) in protest.

The study revealed that when given the choice, rejected male flies prefer food that has been spiked with alcohol over their normal grub. Males that had successfully mated, on the other hand, showed no preference for one meal or the other.

In this study, a team of researchers used this behaviour to identify a signalling molecule in the flies' brains called neuropeptide F(NPF).

Flies that had been denied sex were shown to have low levels of NPF; but when researchers genetically altered sex-deprived flies to produce NPF at higher levels than usual, they behaved as though they were sexually satisfied, and demonstrated no preference for alcohol-dosed food.

"Natural rewards and abused drugs affect the function of the brain's reward systems”, to make this clear, after an elaborate courtship ritual by a male, rejection by a female, or sexual deprivation, decreases the amount of neuropeptide F in the male fly brain.

This correlates with the male's increased preference for ethanol, a behaviour associated with reward and reward seeking. Therefore, abnormal function of these brain regions is associated with addictive behaviour. In the case of the male fruit flies, the neural pathway that NPF uses to reinforce and reward sexual experiences has been linked to alcohol consumption.

NPF is similar to a signalling molecule in humans called neuropeptide Y. By shedding light on the relationship between NPF and neurological reward systems linking sex and alcohol consumption, the research team believes they can gain a better understanding of how addiction works in humans.

Disclaimer: All articles and letters published on MyNews24 have been independently written by members of News24's community. The views of users published on News24 are therefore their own and do not necessarily represent the views of News24. News24 editors also reserve the right to edit or delete any and all comments received.

 

24.com publishes all comments posted on articles provided that they adhere to our Comments Policy. Should you wish to report a comment for editorial review, please do so by clicking the 'Report Comment' button to the right of each comment.

Comment on this story
14 comments
Comments have been closed for this article.

Read more from our Users

Submitted by
Sebastian Bidegain
BREXIT The Queen Leadership?

This is the moment she was born for, a chance to show leadership when her people need it the most.  Read more...

0 comments 1622 views
Submitted by
Ludorum
Politicians and their lies!

I am sure that many people in life have written or spoke about the fact that politicians lie for a living. Brexit a case in point. Read more...

0 comments 308 views
Submitted by
Mara Wijk
Oscar Pistorius - a Personal Vend...

What interesting reading, having a peek into the mind of a hate-filled individual with a personal vendetta, seeking revenge, venting about Oscar, his fame, his personality, his wealthy family... Read more...

0 comments 3155 views
Submitted by
Struan Robertson
In Defense of Uncertainty

Science is great! It’s great for understanding and knowing for certain all the things we can know for certain in science. But, what if there is more? Read more...

0 comments 82 views
Submitted by
Meshack Mathe
Clinics and hospitals are not fai...

It is very disappointing how the patients of HIV & Aids are treated in South Africa yet we are being told everywhere to go and test for HIV & AIDS. Read more...

0 comments 559 views
Submitted by
Colin Webster452
22nd Annual KwaZulu Natal Champio...

Maritzburg College in Pietermaritzburg shall be hosting the 22nd Annual KwaZulu Natal Championships on 9 & 10 July 2016.  Read more...

0 comments 69 views
 

services

E-mail Alerts The latest headlines in your inbox

RSS feeds News delivered really simply.

Mobile News24 on your mobile or PDA

E-mail Newsletters You choose what you want

News24 on Android Get the latest from News24 on your Android device.

SMS Alerts Get breaking news stories via SMS.

TV Get us in your home, on your television.

 
Interactive Advertising Bureau
 
© 2016 24.com. All rights reserved.
There are new stories on the homepage. Click here to see them.
 
English
Afrikaans
isiZulu

Hello 

Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.


Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire 24.com network.

Settings

Location Settings

News24 allows you to edit the display of certain components based on a location. If you wish to personalise the page based on your preferences, please select a location for each component and click "Submit" in order for the changes to take affect.




Facebook Sign-In

Hi News addict,

Join the News24 Community to be involved in breaking the news.

Log in with Facebook to comment and personalise news, weather and listings.