Navigation Links
Pleasurable behaviors reduce stress via brain pathways, research shows
Date:11/10/2010

CINCINNATIWhether it's food or sex, pleasurable activity provides more than just pleasure, University of Cincinnati (UC) researchers say. It actually reduces stress by inhibiting anxiety responses in the brain.

The findings were published online Nov. 8, 2010, ahead of print in PNAS, the official journal of the National Academy of Sciences.

Experiments designed by Yvonne Ulrich-Lai, PhD, research assistant professor, James Herman, PhD, director of the Laboratory of Stress Neurobiology and professor of psychiatry and behavioral neuroscience at UC, and colleagues also indicated that the reduced-stress effects continued for at least seven days, suggesting a long-term benefit.

"These findings give us a clearer understanding of the motivation for consuming 'comfort food' during times of stress," says Ulrich-Lai. "But it's important to note that, based on our findings, even small amounts of pleasurable foods can reduce the effects of stress."

The researchers provided rats twice daily access to a sugar solution for two weeks, then tested the rats' physiological and behavioral responses to stress. Compared with controls, rats with access to sugar exhibited reduced heart rate and stress hormone levels while placed in ventilated restraint tubes and were more willing to explore an unfamiliar environment and socially interact with other rats.

Rats who were fed a solution artificially sweetened with saccharin (instead of being fed sucrose) showed similar reductions in stress responses, the researchers say, as did rats who were given access to sexually responsive partners. But sucrose supplied directly to the stomach did not blunt the rats' stress response, the researchers say.

"This indicates that the pleasurable properties of tasty foods, not the caloric properties, were sufficient for stress reduction," says Ulrich-Lai.

Physiological responses to stress include activation of the hypothalamic-pituitary-adrenocortical (HPA) axis, regulated by the brain structure known as the basolateral amygdale (BLA). Rats exposed to pleasurable activities, such as tasty foods and sex, experienced weakened HPA axis responses to stress, the researchers found.

Lesions of the BLA prevented stress reduction by sucrose, suggesting that neural activity in the BLA is necessary for the effect.

"Our research identifies key neural circuits underlying the comfort food effect," notes Ulrich-Lai. "Further research is needed, but identification of these circuits could provide potential strategies for intervening to prevent or curtail increasing rates of obesity and other metabolic disorders."


'/>"/>

Contact: Keith Herrell
keith.herrell@uc.edu
513-558-4559
University of Cincinnati Academic Health Center
Source:Eurekalert

Related medicine news :

1. OMG! Excessive Texting Tied to Risky Teen Behaviors
2. $12 million grant to study young adult smoking behaviors
3. Study shows behaviors and attitudes towards oral sex are changing
4. Youth define spirituality in terms of positive behaviors, connections
5. Body-image distortion predicts onset of unsafe weight-loss behaviors
6. Parkinsons Drugs Tied to Compulsive Behaviors
7. Four Unhealthy Behaviors Linked to Premature Death
8. UCSF study finds clinic-based HIV prevention is effective in reducing risk behaviors
9. Preventive behaviors limited household transmission of H1N1 influenza during initial outbreak
10. Program delivers healthy behaviors door-to-door
11. Husbands hostile, anti-social behaviors increase wives symptoms of depression, researchers find
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... ... 2016 , ... On June 10-11, 2016, A Forever Recovery, a holistic treatment ... Longest Breakfast Table in Battle Creek, MI, where the rehabilitation facility is located. This ... of the world’s leading providers of cereal and other breakfast foods. Its residents often ...
(Date:6/26/2016)... ... June 26, 2016 , ... ... they have been diagnosed with endometriosis. These women need a treatment plan to ... a comprehensive approach that can help for preservation of fertility and ultimately achieving ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand gesture animations, FCPX ... Austin - CEO of Pixel Film Studios. , ProHand Cartoon’s package transforms over ... Cut Pro X . Simply select a ProHand generator and drag it above media ...
(Date:6/25/2016)... ... ... On Friday, June 10, Van Mitchell, Secretary of the Maryland Department of ... recognition of their exemplary accomplishments in worksite health promotion. , The Wellness at Work ... Symposium at the BWI Marriott in Linthicum Heights. iHire was one of 42 businesses ...
(Date:6/24/2016)... ... 2016 , ... June 19, 2016 is World Sickle Cell Observance Day. In ... benefits of holistic treatments, Serenity Recovery Center of Marne, Michigan, has issued ... Sickle Cell Disease (SCD) is a disorder of the red blood cells, which can ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 23, 2016 , , , ... 7, 2016 , , , , LOCATION: , , , ... , , , EXPERT PANELISTS:  , , , Frost & Sullivan,s ... Christi Bird; Senior Industry Analyst, Divyaa Ravishankar and Unmesh Lal, Program ... global pharmaceutical industry is witnessing an exceptional era. Several new demand ...
(Date:6/23/2016)... PRINCETON, N.J. , June 23, 2016  Guerbet ... of Premier Inc.,s Supplier Horizon Award . ... this year, Guerbet was recognized for its support of ... value creation through clinical excellence, and commitment to lower ... delighted to receive this recognition of our outstanding customer ...
(Date:6/23/2016)... NEW YORK , June 23, 2016 ... rough waters, but it continues to present great opportunities ... featured companies for today: Intrexon Corp. (NYSE: ... ), Arena Pharmaceuticals Inc. (NASDAQ: ARNA ), ... Learn more about these stocks and receive your complimentary ...
Breaking Medicine Technology: