Navigation Links
What Causes Hot Flashes, Anyway?
Date:4/12/2012

By Jenifer Goodwin
HealthDay Reporter

THURSDAY, April 12 (HealthDay News) -- Millions of middle-aged women experience it: that sudden onset of intense heat, sweating and flushing known as a hot flash.

Though it's long been believed that the drop in hormone levels that accompanies menopause contributes to hot flashes, experts say relatively little is known about what actually causes them, or what's occurring when women have one.

"About 70 percent of women experience hot flashes, but their underlying physiology isn't well understood," said Rebecca Thurston, an assistant professor of psychiatry, psychology and epidemiology at University of Pittsburgh.

A new study by Thurston and her colleagues attempts to get at the underlying physiology. Researchers had 21 perimenopausal and postmenopausal women aged 40 to 60 who reported having daily hot flashes wear a heart monitor over a 24-hour period. Perimenopause is the time leading up to menopause when the ovaries produce less estrogen but a woman still gets her period.

The heart monitor showed that during a hot flash, heart-rate variability -- a measure of beat-to-beat changes in heart rate -- decreased significantly, a sign that the parasympathetic nervous system isn't working as well as it normally does.

The parasympathetic nervous system is one aspect of the autonomic nervous system, which regulates unconscious bodily functions such as heart and respiration rates. While the sympathetic nervous system governs the fight-or-flight response, the parasympathetic nervous system is involved with "rest and restore," or regulating the body at rest, Thurston explained.

Other research has found an association between cardiovascular disease and decreased parasympathetic nervous system control of the heart. While researchers say it's too soon to conclude that hot flashes have a connection to heart disease, it's worth continuing to study them, Thurston said.
'/>"/>

Copyright©2010 ScoutNews,LLC.
All rights reserved  

Page: 1 2 3

Related medicine news :

1. Popular nanoparticle causes toxicity in fish, study shows
2. EPA's New Lead-Based Paint (LBP) Renovation, Repair and Painting Rule (RRP) Causes Headaches for Contractors and Property Owners Alike
3. Play Putty Blooms New Fundraising Opportunities for Schools and Causes in Need
4. What Causes A Person To Be Mentally Ill? Author Who Has Spent Decades Researching Topic Says He Has the Answer
5. Diffuse idiopathic skeletal hyperostosis causes dysphagia in older patients
6. Gulf War Syndrome Is Real, But Causes Unclear: Report
7. DNA Test Misses Virus That Causes Hearing Loss
8. Understanding causes of cancer and chronic disease: The Canadian Partnership for Tomorrow Project
9. Children's Rights Group Agrees with New Study: Infant Circumcision Causes 100 Deaths Each Year in US
10. Causes of death in AIDS patients
11. Scientists Discover Substance That Causes Pain
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
 What Causes Hot Flashes, Anyway?
(Date:4/17/2014)... University of California, San Diego School of Medicine report ... suffered a recent major loss are more likely to ... The study is published in this month,s issue of ... Because compassionate behaviors are associated with better health and ... into ways to improve the outcomes of individuals whose ...
(Date:4/17/2014)... has created a new technology for modifying human ... the body and selectively target cancer and other ... that monitor and modify human physiology is a ... existing technology enabled bioengineers to build such devices ... in a customized fashion. , "The project addressed ...
(Date:4/17/2014)... The cause of neuronal death in Parkinson,s disease ... neurons may be mistaken for foreign invaders and killed ... way autoimmune diseases like type I diabetes, celiac disease, ... was published April 16, 2014, in Nature Communications ... idea in Parkinson,s disease; but if true, it could ...
(Date:4/17/2014)... April 17, 2014 EcoHealth Alliance, a nonprofit organization ... published a comprehensive review today examining the current state ... The review calls for improved global surveillance strategies to ... recent outbreak of Ebola in West Africa that has ... of Guinea and Liberia. According to the World ...
(Date:4/17/2014)... YORK (17 April 2014) Population Council scientists and their ... safe, stable, and can prevent the transmission of multiple ... rectum in animals: HIV, herpes simplex virus 2 (HSV-2), ... the first data that the gel is effective against ... efficacy in the vagina against all three viruses of ...
Breaking Medicine News(10 mins):Health News:The ilk of human kindness 2Health News:Building 'smart' cell-based therapies 2Health News:Is Parkinson's an autoimmune disease? 2Health News:Re-emergence of Ebola focuses need for global surveillance strategies 2Health News:Re-emergence of Ebola focuses need for global surveillance strategies 3Health News:Animal study provides first evidence that gel can prevent multiple virus transmission in vagina/rectum 2
... ... MILLS, Md., March 12 Medifast, Inc.,(NYSE: MED ) announced ... 31, 2007., Financial highlights included:, -- Annual revenues ... to the previous year,s fourth quarter; ...
... nodes could alter treatment approach, study suggests , , WEDNESDAY, ... tumors and tissue from patients with early-stage lung cancer ... say researchers at the Johns Hopkins Kimmel Cancer Center. ... approach for lung cancers, which recur within five years ...
... Call Scheduled for Thursday, March 13, 2008, LANCASTER, ... ) today reported financial results for the second quarter,ended ... weeks ended February 3, 2008 were,approximately $34.7 million. Net ... per share., Myron Levy, the Company,s Chairman and ...
... 12 Cadence Pharmaceuticals,Inc. (Nasdaq: CADX ), ... proprietary product candidates principally,for use in the hospital ... year ended December 31, 2007, and provided corporate ... and for 2008 to date., "During 2007, ...
... 12, 2008 (BRONX, NY) The unwanted activation ... in two kidney problems that are major causes of ... of Medicine of Yeshiva University have found. Their research, ... failure, is described in the March issue of Nature ...
... been awarded a five-year, $2.1 million grant from the ... of the National Institutes of Health (NIH), to continue ... on research careers. , The grant renews support that ... the training of 26 UI clinician-scientists in pediatrics. They ...
Cached Medicine News:Health News:Medifast Announces Year-end 2007 Financial Results 2Health News:Medifast Announces Year-end 2007 Financial Results 3Health News:Medifast Announces Year-end 2007 Financial Results 4Health News:Medifast Announces Year-end 2007 Financial Results 5Health News:Medifast Announces Year-end 2007 Financial Results 6Health News:Medifast Announces Year-end 2007 Financial Results 7Health News:Medifast Announces Year-end 2007 Financial Results 8Health News:Medifast Announces Year-end 2007 Financial Results 9Health News:Genetic Markers May Predict Lung Cancer Recurrence 2Health News:Herley Reports Second Quarter Results 2Health News:Herley Reports Second Quarter Results 3Health News:Herley Reports Second Quarter Results 4Health News:Herley Reports Second Quarter Results 5Health News:Herley Reports Second Quarter Results 6Health News:Herley Reports Second Quarter Results 7Health News:Herley Reports Second Quarter Results 8Health News:Herley Reports Second Quarter Results 9Health News:Herley Reports Second Quarter Results 10Health News:Cadence Pharmaceuticals Reports Fourth Quarter and Full Year 2007 Financial Results and Provides Corporate and Clinical Program Overview 2Health News:Cadence Pharmaceuticals Reports Fourth Quarter and Full Year 2007 Financial Results and Provides Corporate and Clinical Program Overview 3Health News:Cadence Pharmaceuticals Reports Fourth Quarter and Full Year 2007 Financial Results and Provides Corporate and Clinical Program Overview 4Health News:Cadence Pharmaceuticals Reports Fourth Quarter and Full Year 2007 Financial Results and Provides Corporate and Clinical Program Overview 5Health News:Cadence Pharmaceuticals Reports Fourth Quarter and Full Year 2007 Financial Results and Provides Corporate and Clinical Program Overview 6Health News:Cadence Pharmaceuticals Reports Fourth Quarter and Full Year 2007 Financial Results and Provides Corporate and Clinical Program Overview 7Health News:Cadence Pharmaceuticals Reports Fourth Quarter and Full Year 2007 Financial Results and Provides Corporate and Clinical Program Overview 8Health News:Cadence Pharmaceuticals Reports Fourth Quarter and Full Year 2007 Financial Results and Provides Corporate and Clinical Program Overview 9Health News:Cadence Pharmaceuticals Reports Fourth Quarter and Full Year 2007 Financial Results and Provides Corporate and Clinical Program Overview 10Health News:Novel discovery by Einstein scientists could lead to much-needed kidney failure treatment 2Health News:$2.1 million NIH grant advances U-Iowa child health research 2Health News:$2.1 million NIH grant advances U-Iowa child health research 3
(Date:1/15/2014)... 2014  Manufacturers, suppliers and distributors of innovative medical-related ... their most important business assets, intellectual property (IP). ... Because of the highly-competitive nature of the ... the most litigious industry sectors of cases involving ...
(Date:1/15/2014)...  Echo Therapeutics, Inc. (Nasdaq: ECTE ) ("Echo"), ... as a non-invasive, wireless continuous glucose monitoring system, today ... and Interim CEO of Echo Therapeutics, will present at ... Mr. Doman will make a corporate ...
(Date:1/15/2014)... YORK , Jan. 15, 2014 ... report is available in its catalogue: ... India Drug Forecast and Market Analysis to ... PharmaPoint: Atopic Dermatitis - India Drug ...
Breaking Medicine Technology:Intellectual Property Insurance for Medical-related Products and Services 2Echo Therapeutics to Present at the Noble Financial Capital Markets' Tenth Annual Equity Conference 2Echo Therapeutics to Present at the Noble Financial Capital Markets' Tenth Annual Equity Conference 3PharmaPoint: Atopic Dermatitis - India Drug Forecast and Market Analysis to 2022 2PharmaPoint: Atopic Dermatitis - India Drug Forecast and Market Analysis to 2022 3PharmaPoint: Atopic Dermatitis - India Drug Forecast and Market Analysis to 2022 4PharmaPoint: Atopic Dermatitis - India Drug Forecast and Market Analysis to 2022 5
... 2010 MMRSS, which has been,expanding its geographic footprint over the past 5 years, announced the,opening of ... , , ... Thailand , Indonesia , Sri,Lanka , Bangladesh , Vietnam and UAE, has ... , , ...
... , SUNNYVALE, Calif. , Aug. 3 Accuray Incorporated ... field of radiosurgery, announced today it received Shonin approval from the Japanese ... Robotic Radiosurgery System to treat tumors non-invasively anywhere in the body, inclusive ... as the "CyberKnife® Radiosurgery System." , ...
Cached Medicine Technology:MMRSS now in Hong Kong, Singapore and Taiwan 2Accuray's CyberKnife® G4 System Receives Shonin Approval 2Accuray's CyberKnife® G4 System Receives Shonin Approval 3Accuray's CyberKnife® G4 System Receives Shonin Approval 4
... a national reference laboratory and a worldwide ... ARUP offers an extensive test menu of ... clinical and anatomic pathology. Owned by the ... more than half of the nation's university ...
... 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 ...
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
... ARUP Laboratories is a national reference ... laboratory research and development. ARUP offers an ... unique medical tests in clinical and anatomic ... ARUP Laboratories' clients include more than half ...
Medicine Products: