Navigation Links
Middle-aged men: Could dwindling testosterone levels decrease sleep?
Date:5/14/2010

Montreal, May 14, 2010 At 30 years old, male testosterone levels drop by one to two percent annually. By age 40, men's quality of sleep begins to diminish. Could there be a link between decreased testosterone and reduced sleep? Absolutely according to Zoran Sekerovic, a graduate student from the University of Montreal Department of Psychology, who presented his findings at the annual conference of the Association francophone pour le savoir (ACFAS).

Sekerovic discovered a link between testosterone levels in men over 50 and their quality of sleep specifically less deep sleep i.e. Phases III and IV of the slumber cycle. "Deep sleep is when the recuperation of body and mind is optimal," says Sekerovic, adding his is the first study to find this correlation.

In young men, deep sleep represents 10 to 20 percent of total sleep. By age 50, it decreases to five to seven percent. For men over 60, it can disappear altogether. The study didn't find any correlation with other parts of the sleep cycle: falling asleep, Phases I and II, or paradoxical sleep, when most of dreaming occurs.

The University of Montreal researcher explains that men in their 20s don't have such a correlation because their neuronal circuits are intact. "With age, there is neuronal loss and the synchronization of cerebral activity isn't as good, which is why there is a loss of deep sleep. Because deep sleep requires great synchronization," says Sekerovic. "Low levels of testosterone intensify the lack of synchronization and can explain 20 percent of men's inability to experience deep sleep."

Sekerovic suggests dwindling testosterone levels are what impact sleep, not vice-versa, as other studies have suggested. He adds previous investigations measured daily fluctuations in testosterone levels, which are higher in the morning.

If Sekerovic is right, his findings could re-ignite the hormone therapy debate. "The loss of deep sleep is a serious problem that
'/>"/>

Contact: Sylvain-Jacques Desjardins
sylvain-jacques.desjardins@umontreal.ca
514-343-7593
University of Montreal
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Middle-aged Americans report more mobility-related disabilities
2. Middle-aged Americans reporting more mobility related disabilities, study finds
3. Overweight middle-aged adults at greater risk for cognitive decline in later life
4. Sniff of local anesthetic in the dentists chair could replace the needle
5. Response to vaccines could depend on your sex
6. Enter One Year Auction Contest; You Could Win 5% of Winning Bid or Buy Now - $1 Million Option Proceeds
7. Ingredient in Dark Chocolate Could Guard Against Stroke
8. Gulf Oil Spill Could Threaten Human Health
9. Could the Pill Lower a Womans Sex Drive?
10. Duty of Care - New Driving Legislation Could Put You in Court! UKContractHireandLeasing spread the word on these new regulations
11. Stool DNA testing could play expanded role in colon cancer prevention
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/21/2014)... 21, 2014 AngelWeddingDress.com’s new collection of ... a total of 1,000 new designs in this collection, ... spring 2015. , AngelWeddingDress.com promises to provide ... with wardrobe essentials while many fashion trends come and ... customer service team at AngelWeddingDress.com is ready to assist. ...
(Date:12/21/2014)... Mi (PRWEB) December 21, 2014 AlignLife ... child in need while at the same time helping people ... is a non-profit community-based organization committed to serving those persons ... meet their needs to improve the quality of life. Dr. ... make an impact in the local community and he knew ...
(Date:12/21/2014)... December 21, 2014 Theme ... a new intro plugin for Final Cut Pro X ... videos, logos, and more with absolute ease.” Said Christiana ... users the tools needed to easily animate their media ... Cut Pro X users to animate pictures, videos, logos, ...
(Date:12/20/2014)... BambooIndustry.com is a professional company offering ... has recently shown its new engineered bamboo flooring collection, ... flooring models. , BambooIndustry.com’s customers come from many countries ... According to the CEO of the company, the global ... the past few years, and the demand for eco-friendly ...
(Date:12/20/2014)... Dress company LunaDress has recently announced its ... Christmas Sale, offering big discounts on all of its special ... idea to own a perfect wedding gown. If you have ... then come to LunaDress. Many different wedding dress styles and ... website now and enjoy the current special offer, up to ...
Breaking Medicine News(10 mins):Health News:2015 Spring Wedding Dresses From AngelWeddingDress Just Released 2Health News:AlignLife of Norton Shores Makes a Brighter Christmas for Kids in Muskegon 2Health News:Announcing a new plugin for Final Cut Pro X ProMotion from Pixel Film Studios. 2Health News:BammbooIndustry.com: Big Discounts On All Kinds Of Bamboo Flooring Collections 2Health News:2015 Collection of Wedding Dresses from LunaDress Online on Sale Now 2
... 30, PharmAthene, Inc. (NYSE Amex: PIP ... and chemical threats, today reported operational and financial results ... years ended December 31, 2008 and 2007, the Company ... Revenues for the full year 2008 consisted primarily ...
... new studying appearing in Congenital Heart Disease ... and women who underwent surgery for congenital heart disease ... produced evidence that shows how medicine may provide preconditions ... life. , In recent decades, survival rates and the ...
... for fiscal fitness.DOVER, N.H., March 30 No more excuses! Planet ... during these tough economic times. From April 1 - April ... members will pay a one-dollar sign-up fee and ... All are encouraged to register either online at ...
... chemicals used to make bombs can foil detection because ... detection techniques. Tel Aviv University has developed the ultimate ... "hidden" molecules into something we can detect and see. ... Shabat of TAU,s Raymond and Beverly Sackler School of ...
... Newsletter for Healthcare ProfessionalsVOORHEES, N.J., March 30 ... urticaria (hives) and angioedema can be challenging, ... a number of immunologic and nonimmunologic mechanisms. ... seemingly identical presentation of angioedema subtypes. It ...
... check-in, ,self-room, access medical information and learn about ... new portable terminal used by patients during hospital, ... and streamline patient check-in, plus provides doctors, nurses ... enhancing tool. International Medical Solutions has introduced ...
Cached Medicine News:Health News:PharmAthene Reports Year End 2008 Financial Results 2Health News:PharmAthene Reports Year End 2008 Financial Results 3Health News:PharmAthene Reports Year End 2008 Financial Results 4Health News:PharmAthene Reports Year End 2008 Financial Results 5Health News:PharmAthene Reports Year End 2008 Financial Results 6Health News:PharmAthene Reports Year End 2008 Financial Results 7Health News:Study examines effect of heart surgery on employment 2Health News:A 'bionic nose' that knows 2Health News:New Directions in Angioedema: A Focus on Pathogenesis and Classification 2Health News:New Mobile Patient Communicator(TM) Gives Patients an Interactive Education Tool and Boosts Nurse Productivity 2
(Date:12/17/2014)... Revenue and earnings above the previous ... development In the past 2013/14 fiscal year (ended ... to EUR 4.287 billion (last year: EUR 4.190 billion) despite ... EUR 360 million. "Overall, 2013/14 was a successful fiscal year ... President and CEO of Carl Zeiss AG. "Thanks to our ...
(Date:12/17/2014)... With advancements in neurological and functional ... seeing new growth, according to Kalorama Information. Though ... the majority of market volume, newer 3T systems ... are creating opportunities for more sophisticated applications. The medical ... a rate of 4%, with world market revenues ...
(Date:12/17/2014)... Dec. 17, 2014  ImmunoCellular Therapeutics, Ltd. ("ImmunoCellular") ... and Trademark Office (USPTO) has issued a key ... cell-based immunotherapeutic vaccine targeting six tumor antigens that ... US Patent No. 8,871,211, which issued October 28, ... administering a dendritic cell composition comprising peptide epitopes ...
Breaking Medicine Technology:ZEISS Asserts its Position in Difficult Environment 2Kalorama: 3T Advancements Bringing New Growth to the MRI Market 2Kalorama: 3T Advancements Bringing New Growth to the MRI Market 3ImmunoCellular Therapeutics Announces Issuance of Key Patent For ICT-107 Cancer Vaccine 2
... AUGUSTINE, Fla., Aug. 10, 2011 Flagler Hospital ... selected the Sunrise Enterprise ™ suite of clinical ...  In addition to implementing Sunrise within the hospital, Flagler ... Record (EHR) and practice management solution for its ...
... Simbionix USA Corporation, the world,s leading provider of ... and the healthcare industry, is pleased to announce it ... its innovative PROcedure Rehearsal Studio ™ . ... in industry product, allowing clinicians to create patient specific 3D ...
Cached Medicine Technology:Flagler Hospital Selects the Sunrise Enterprise Acute Care Solution From Allscripts 2Flagler Hospital Selects the Sunrise Enterprise Acute Care Solution From Allscripts 3Flagler Hospital Selects the Sunrise Enterprise Acute Care Solution From Allscripts 4Flagler Hospital Selects the Sunrise Enterprise Acute Care Solution From Allscripts 5Flagler Hospital Selects the Sunrise Enterprise Acute Care Solution From Allscripts 6Patent Granted for Simbionix Procedure Rehearsal Studio™ 2
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
Medicine Products: