Navigation Links
Brain's Serotonin May Explain Seasonal Mood Changes
Date:9/2/2008

Higher binding potential in winter could clarify why people feel down when sun shines less

TUESDAY, Sept. 2 (HealthDay News) -- Fluctuations in the actions of the serotonin transporter, which helps regulate the mood-altering neurotransmitter serotonin, may help explain seasonal affective disorder and related mood changes, researchers say.

In places where the weather changes with the seasons, people commonly feel happier and more energetic when the days are bright and sunny and more depressed and fatigued during the dark of winter. Scientists believe this is related to variations in brain levels of serotonin, a neurotransmitter involved in regulating functions such as mating, feeding, energy balance, and sleep.

In a study published in the September issue of the Archives of General Psychiatry, researchers from the Centre for Addiction and Mental Health and the University of Toronto had 88 healthy people undergo a positron emission tomography (PET) scan to assess serotonin binding potential, which indicates serotonin transporter density. The higher the serotonin binding potential, the less serotonin that is circulating in the brain.

To study seasonal fluctuations of serotonin binding potential, the researchers grouped the PET scans according to the season of the scan -- fall and winter or spring and summer.

The serotonin binding potentials were significantly higher during the fall and winter months than in the spring and summer, indicating that less serotonin circulates in the brain during the darker, colder time of the year. The researchers compared their findings to meterological data and found higher values of serotonin binding potentials during times when there were fewer hours of sunlight each day.

The researchers said that higher serotonin binding potential in the winter may help explain why people report lower mood, lack of energy, fatigue, overeating, and increased sleeping durin
'/>"/>

Copyright©2008 ScoutNews,LLC.
All rights reserved

Page: 1 2

Related medicine news :

1. A new light on the brains of people with borderline personality disorder
2. Gay Men, Straight Women Have Similar Brains
3. Cooling May Not Help Injured Brains in Children
4. New stem cell therapy may aid the repair of damaged brains
5. Sleep-Deprived Brains Show Lapse in Visual Processing
6. Analysis of alcoholics brains suggests treatment target
7. Yeast gives rise to new concept: cell fuel is brains behind division
8. AgeLab Director Brings Wisdom to Aging Brains
9. Are teenage brains really different?
10. Which came first, social dominance or big brains? Wasps may tell
11. Chicago neuroscientist contributes to book on brains and baseball
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2015)... , ... August 28, 2015 , ... ... center management, Decatur County Memorial Hospital recently transitioned management companies to partner with ... Center Management for their outpatient wound center. , Transitioning wound care management ...
(Date:8/28/2015)... Port Richey, FL (PRWEB) , ... August 28, 2015 , ... ... while many potential workers are qualified for the position they are applying for, they ... Because of this, many employers are considering altering drug testing policies in order to ...
(Date:8/28/2015)... ... 2015 , ... For Dallas, the time is nearing for the annual Heart ... Health. , The American Heart Association hosts their well-known Heart Walk to raise money ... a difference can be made. Walkers can participate in the cause and someone can ...
(Date:8/28/2015)... ... ... The 6th Annual Survivor in the City, Chicago silent auction and cocktail ... its cadre of widespread support—an official letter of support and gratitude from the Mayor ... and the University of Illinois at Chicago’s Department of Neurosurgery, the Brain Aneurysm Foundation ...
(Date:8/28/2015)... , ... August 28, 2015 , ... ... grams of high grade protein with zero fat, carbs, sugar, gluten, lactose or ... named a finalist for the 2015 SupplySide CPG Editor’s Choice Awards. , Five ...
Breaking Medicine News(10 mins):Health News:Decatur County Memorial Hospital Transitions Wound Center Management To Wound Care Advantage and the Luvo Operating System 2Health News:Decatur County Memorial Hospital Transitions Wound Center Management To Wound Care Advantage and the Luvo Operating System 3Health News:Decatur County Memorial Hospital Transitions Wound Center Management To Wound Care Advantage and the Luvo Operating System 4Health News:Hiring Obstacles: Drug Abuse a Problem for Workforce 2Health News:Hiring Obstacles: Drug Abuse a Problem for Workforce 3Health News:Hiring Obstacles: Drug Abuse a Problem for Workforce 4Health News:North Central Surgical Center’s Subsidiary Participates in Walk 2Health News:Chicago Mayor Pens Official Support of Annual Survivor in the City Event Benefitting Brain Aneurysm Foundation 2Health News:Chicago Mayor Pens Official Support of Annual Survivor in the City Event Benefitting Brain Aneurysm Foundation 3Health News:Pocket Protein™ Named 2015 CPG Editor’s Choice Award Finalist by Informa’s SupplySide 2Health News:Pocket Protein™ Named 2015 CPG Editor’s Choice Award Finalist by Informa’s SupplySide 3
... Making more AEDs available in communities could save hundreds ... News) -- Compared with cardiopulmonary resuscitation (CPR) alone, bystander ... CPR more than doubles a person,s chances of surviving ... says. , The researchers analyzed the ...
... fare more likely to act out at 7, 10, study ... exposed to violent television -- even cartoons -- are more ... Their findings don,t definitively prove that TV makes children act ... to the researchers. But the link does appear solid in ...
... be more accurate than existing biological signposts used ... advanced forms of the disease. , Detailed ... of the International Journal of Cancer, the discovery ... patients from unnecessarily undergoing aggressive cancer treatments. , ...
... scientific paper today written by a single author. With research ... a half-dozen or so authors. According to a new study ... credit for those papers is far from evenly distributed, and ... a big difference. , The new findings appear in the ...
... 5 Charles Alan, Inc. today launched its,new ... ProBax(R) seating technology by NuBax Limited at the ... leading independent,furniture manufacturers in the nation, recognized not ... other manufacturers. The Sovereign and Winston,Series are available ...
... Physicians to Prescribe Exercise to Patients, WASHINGTON, ... (ACSM) and the American Medical Association (AMA) today,launched ... encourage,America,s patients to incorporate physical activity and exercise ... doctors to prescribe,exercise to their patients., A ...
Cached Medicine News:Health News:CPR, Defibrillator Combo Boosts Cardiac Incident Survival 2Health News:TV Violence May Spur Aggression in Boys 2Health News:TV Violence May Spur Aggression in Boys 3Health News:Biomarker may be an early predictor of advanced breast cancer 2Health News:Lost in the middle: author order matters, new paper says 2Health News:Charles Alan Launches Healthcare-focused Furniture Lines with NuBax Seating Technology, Offering Smart Design and Health Benefits 2Health News:Charles Alan Launches Healthcare-focused Furniture Lines with NuBax Seating Technology, Offering Smart Design and Health Benefits 3Health News:Charles Alan Launches Healthcare-focused Furniture Lines with NuBax Seating Technology, Offering Smart Design and Health Benefits 4Health News:ACSM and AMA Launch 'Exercise Is Medicine' Program 2Health News:ACSM and AMA Launch 'Exercise Is Medicine' Program 3
(Date:8/27/2015)... 2015 According to a new market research ... Universal, Standing, Bariatric ), Material (Nylon, Padded, Canvas), Usage Type (Disposable, ... by MarketsandMarkets, the Medical Lifting Sling Market is poised to reach ... at a CAGR of 11.4 % from 2015 to 2020. ... rket data T ables and 65 ...
(Date:8/27/2015)... Women Grow , the fastest-growing professional networking organization for women ... Cannabis World Congress & Business Exposition (CWCBExpo) in ... sessions. CWCBExpo in LA will take place September 16-18, 2015 ... in Los Angeles, CA , and is ... marijuana industry. The Women Grow tracks at ...
(Date:8/27/2015)... LAKEWOOD, Ohio , Aug. 27, 2015  A ... according to Booz Allen Hamilton . A ... that product development inefficiencies are impeding and disrupting manufacturers, ... Can Cut Waste and Improve Value In Product Development ... cost of inaccessible data and how it affects the ...
Breaking Medicine Technology:Medical Lifting Sling Market Worth USD 706.0 Million by 2020 2Medical Lifting Sling Market Worth USD 706.0 Million by 2020 3Medical Lifting Sling Market Worth USD 706.0 Million by 2020 4Cannabis World Congress in Los Angeles Boasts Women Grow Sponsored Education 2Cannabis World Congress in Los Angeles Boasts Women Grow Sponsored Education 3Cannabis World Congress in Los Angeles Boasts Women Grow Sponsored Education 4New White Paper Reveals How Manufacturers Can Improve Product Development Processes 2
... , , , THOUSAND ... AMGN ) today announced that new data will be presented ... Prolia(TM) (denosumab) at the 2009 American Society for Bone and ... 2009. Prolia currently is being evaluated by regulatory bodies ...
... LEVADEX Analysis Shows Potential to ... Migraine is a common, debilitating ... United States, according to the,National Headache Foundation. Limitations of ... migraines, include slow onset of,significant pain relief between 45 ...
Cached Medicine Technology:Amgen Highlights Data to be Presented at American Society for Bone and Mineral Research (ASBMR) Meeting 2Amgen Highlights Data to be Presented at American Society for Bone and Mineral Research (ASBMR) Meeting 3Amgen Highlights Data to be Presented at American Society for Bone and Mineral Research (ASBMR) Meeting 4Amgen Highlights Data to be Presented at American Society for Bone and Mineral Research (ASBMR) Meeting 5Amgen Highlights Data to be Presented at American Society for Bone and Mineral Research (ASBMR) Meeting 6Amgen Highlights Data to be Presented at American Society for Bone and Mineral Research (ASBMR) Meeting 7Amgen Highlights Data to be Presented at American Society for Bone and Mineral Research (ASBMR) Meeting 8MultiVu Video Feed: POSITIVE PHASE 3 TRIAL DATA FOR INVESTIGATIONAL NEW MIGRAINE TREATMENT PRESENTED IN LATE-BREAKING SESSION AT 14th ANNUAL INTERNATIONAL HEADACHE SOCIETY CONGRESS 2
... The Raindrop® medication nebulizer achieves optimum lung ... particle size range is 1.04-1.10 µ at ... or air outlet., ,As the world ... healthcare providers the assurance of proven technology ...
... Eliminate the need for makeshift, modified nebulizer ... waste time gathering parts when your patient ... to deliver the utmost in Heliox rescue ... is fast becoming the standard of care ...
... World's smallest nebulizer utilizing Vibrating ... medications for patients suffering from Asthma, ... appreciate the small product size and ... transported wherever life takes them. Powerful ...
... as well as humidification, try Flo-Mist™., ... volume, continuous medication nebulizer (CMN), engineered to ... 200 ml reservoir and jet flow design ... nebulized medication delivery at 25 ml/hr. Particles ...
Medicine Products: