Navigation Links
Expecting an afternoon nap can reduce blood pressure
Date:10/15/2007

BETHESDA, Md. (Oct. 15, 2007) Where does the benefit lie in an afternoon nap" Is it in the nap itself--or in the anticipation of taking a snooze" Researchers in the United Kingdom have found that the time just before you fall asleep is where beneficial cardiovascular changes take place.

This finding is part of a study entitled Acute Changes in Cardiovascular Function During the Onset Period of Daytime Sleep: Comparison to Lying Awake and Standing, found in the online edition of the Journal of Applied Physiology, published by The American Physiological Society. The study was conducted by Mohammad Zaregarizi, Ben Edwards, Keith George, Yvonne Harrison, Helen Jones and Greg Atkinson, of the Liverpool John Moores University in Liverpool, U.K.

The Afternoon Nap

Afternoon naps, or siestas, are practiced in many Mediterranean and Latin American countries such as Spain and Argentina. They are typically short naps or rest periods of no more than an hour that are taken in the afternoon.

While earlier studies on siestas have found that this practice may slightly increase the risk of heart attack, newer and more controlled studies have shown an inverse relationship between siesta taking and fatal heart attacks. In a recent epidemiological study of 23,000 people in Greece, those who regularly took siestas showed a 37% reduction in coronary mortality compared to those who never nap, while individuals who occasionally napped in the afternoon had a reduction of 12%.

Why do afternoon naps affect cardiovascular function" One reason could be changes in blood pressure. At night, our blood pressure and heart rate decreases as we sleep. Some researchers hypothesize that the lower blood pressure reduces strain on the heart and decreases the risk of a fatal heart attack.

Most studies have focused on cardiovascular behavior in nighttime sleeping. This study provides a detailed description of changes in cardiovascular fu
'/>"/>

Contact: Christine Guilfoy
cguilfoy@the-aps.org
301-634-7253
American Physiological Society
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Male circumcision reduces risk of HIV transmission from women to men
2. Deficiency of growth hormone and IGF-1 reduces cancer and kidney disease, but creates other problems
3. Use of PET can reduce, may eliminate more strenuous drug development trials with animals
4. Solutions that reduce death of marine life reeled in by International Smart Gear Competition
5. Physiological effects of reduced gravity on bacteria
6. New strategies to reduce hospital-aquired infections
7. New miniaturised chip dramatically reduces time taken for DNA analysis
8. Scalpel-free surgery could reduce risk of HIV and hepatitis exposure for health care workers
9. Newly recognized gene mutation may reduce seeds, resurrect plants
10. New processing method reduces peanut allergenicity
11. Blocking the nerve receptor EP1 in mouse models reduces brain damage caused by stroke
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/16/2014)... managers have a new synthesis of recent research findings ... forests in the two states. , The Ecology ... and Washington: A Synthesis of the Relevant Biophysical Science ... report published by the U.S. Forest Service,s Pacific Northwest ... from managers for a synthesis of the large body ...
(Date:10/16/2014)... be cultivated efficiently, they are anything but sustainable: ... monoculture cultivation is becoming increasingly evident. Despite their ... and are regarded as the sole possibility of ... wrongfully, finds Bernhard Schmid, an ecology professor at ... form of agriculture and forestry. After all, a ...
(Date:10/16/2014)... – Post-menopausal women experienced improvements in vaginal atrophy, ... genital bleeding, after 12 weeks of daily 10 ... germ-based nutritional supplement previously shown to help relieve ... pilot study reported in a poster at the ... , "These data documented improved vaginal epithelium, ...
Breaking Biology News(10 mins):New report synthesizes best available science on management of moist mixed-conifer forests 2Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2
... University of Adelaide will rewrite the textbooks on how an ... health and fertility. The study, now published in the journal ... that plays a key role in the development of ovaries and ... women. The discovery is expected to prompt further studies around ...
... the scientists visualized seven intermediate forms of the CylR2 ... Their results show that the most instable intermediate form ... findings may contribute to a better understanding of how ... Whether Alzheimer,s, Parkinson,s or Huntington,s Chorea all ...
... one of the most aggressive invasive ant species in the ... met its match in the Asian needle ant. Specifically, the ... displacing Argentine ants in an urban environment, indicating that the ... be the next invasive species to see a population boom. ...
Cached Biology News:Study prompts rethink of how ovaries develop 2Protein 'filmed' while unfolding at atomic resolution 2Protein 'filmed' while unfolding at atomic resolution 3Researchers find Asian needle ants displacing other aggressive invaders 2
(Date:10/22/2014)... and HONG KONG , ... rare disease therapeutics enterprise, announced today that rare disease ... company as vice president, research. Dr. McKew brings more ... key leadership positions at the National Institutes of Health, ... acquisition by Wyeth). Dr. McKew will lead aTyr,s efforts to ...
(Date:10/20/2014)... GUELPH, ON , Oct. 20, 2014 /PRNewswire/ - BIOREM Inc. ... totalling $1.7 million which brings Q3 orders to $5.8 million and ... odour control projects in North America and ... "We continue to bid new projects at record levels," said ... values were higher at the end of Q3 than they have ...
(Date:10/20/2014)... October 20, 2014 Earle ... LLC, announced today that Ellen Teplitzky, an experienced ... for the pharmaceutical industry, has joined the firm ... its legal services practice. NDA Partners provides ... witness and testimony, to top law firms and ...
(Date:10/19/2014)... The Asia-Pacific Bromine Market report defines ... analysis and forecast of revenue. , Browse through ... report, to get an idea of the in-depth ... the segmentation in the Asia-Pacific bromine market, and ... , http://www.micromarketmonitor.com/market/asia-pacific-bromine-6741503144.html , Bromine is a ...
Breaking Biology Technology:aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3NDA Partners Appoints Ellen Teplitzky, JD as Director of its Legal Services Practice 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 3
... , , , , SEATTLE, ... at the Rodman & Renshaw 11th Annual Healthcare Conference on Wednesday, September 9th at ... Hotel. , , The conference will also be webcast live with ... www.celltherapeutics.com . , , , ...
... COLUMBIA, Md., Sept. 2 ACell, Inc. is announcing its participation ... , The conference will be held September 9, ... in New York City. James DeFrancesco, Chief Executive Officer and President, ... at 9:10 AM (EDT) in the Hubbard Room. The presentation is ...
... BERLIN, September 2 , - Asset Purchase Agreement ... and NeoBenz(R) Micro, , Intendis GmbH, which ... agreement to acquire two prescription dermatology product lines,from SkinMedica, Inc., a ... Both Desonate(R) and NeoBenz(R) Micro are currently marketed in the ...
Cached Biology Technology:ACell's CEO to Present at Rodman & Renshaw's 2009 Annual Global Investment Conference 2Bayer Acquires Two Prescription Dermatology Product Lines From SkinMedica in the U.S. 2Bayer Acquires Two Prescription Dermatology Product Lines From SkinMedica in the U.S. 3
[14C]Polyethylene glycol 4000, 9.25 MBq, 250 uCi. Aqueous solution containing 3% ethanol, sterilized. 370-740 MBq/g, 10-20 mCi/g.1.85 MBq/ml, 50 uCi/ml. Category: Radiochemicals &Radiation Safety, ...
Request Info...
interferon-related developmental regulator 2...
PlusOne EDTA, disodium salt, 100 g. Category: Electrophoresis Systems & Standards & Reagents, Electrophoresis Standards and Reagents, Buffers....
Biology Products: