Navigation Links
Insufficient Sleep Increases Risk of Cardiovascular Disease: Study

Chronic sleep deprivation can do more than leave you short-tempered: it can also stress your heart and raise your risk of cardiovascular disease and death, according to a study released Wednesday .

The neurological and behavioural effects of long-term sleep loss have been well-documented, ranging from lowered concentration and hand-eye coordination to poor mood. But the study by researchers at the University of Pennsylvania School of Medicine adds to a growing body of evidence that there is also a physiological price to be paid for insufficient time under the sheets.

The study found that a sleep deficit built up over just five nights can significantly stress the heart. The researchers tested the cardiac function of their 39 volunteers twice -- once at the beginning of the study, after a night of 10 hours' sleep, and again after five nights when they got a mere four hours of shut-eye each night.

The electrocardiograms revealed that all of the volunteers had a much faster heart beat and significantly less heart rate variability following the nights of sleep deprivation. Heart rate variability describes the naturally occurring beat-to-beat changes in heart rate which reflect the body's adjustment to a host of stresses and stimuli. Reduced variability can be a marker for cardiac problems and other diseases and has been linked to high blood pressure.

"The effect of the sleep deficit was to increase the stress on the hearts of these volunteers," said Siobhan Banks, a lead author on the study. "If our finding is sustained by a larger group and further analysis, it may suggest why short sleep duration is associated with a heightened risk of cardiovascular disease and mortality."

The findings are consistent with previous research showing that shift workers are at higher risk for cardiovascular disease due to the fact that they get less sleep because of the disruption in their circadian or sleep-wake rhythms.

Banks, an assistant professor at the University of Pennsylvania in Philadelphia, will present her study Wednesday at SLEEP 2007, the annual gathering of the Associated Professional Sleep Societies in Minneapolis, Minnesota. In another study to be presented at the same meeting Wednesday, researchers reported that extra sleep can help athletes raise their game.

Investigators who tracked six men on the Stanford University basketball team found that the ball players were able to shave seconds off their sprint times and improve their shooting percentages by getting as much extra sleep as possible over an extended period of time. The athletes also reported improved energy and improved mood during practices and games, according to the Stanford University investigators.


'"/>




Related medicine news :

1. MRI Scan Insufficient For Diagnosing Multiple Sclerosis
2. Hypertension linked to Insufficient Sleep
3. Heat Avoidance Advice Insufficient During Heat Waves
4. Insufficient Sleep Associated with Poorer Blood Glucose Control
5. Insufficient sleep linked to the rise in childhood obesity
6. HIV Tests Offered to Los Angeles Hispanics Insufficient: Study
7. Sleep apnoea increases post-operative risks
8. Sleep, snoring....stroke
9. Sleeping sickness - a silent killer
10. Deep Sleep Doesnt Increase Memory
11. Sleepwalking has genetic roots
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/27/2016)... ... May 27, 2016 , ... In response to meager public ... unaware of the plight of aphasia. In collaboration with the American Aphasia Association, ... , The link between stroke and aphasia is relatively unknown, but through collaboration ...
(Date:5/27/2016)... ... May 27, 2016 , ... Aimed at nurses and employees in the health ... of leaders in the nursing and health care industry. It also provides insight to ... Christian University. , As the nursing industry is coming out of one of ...
(Date:5/26/2016)... ... May 26, 2016 , ... Despite last week’s media ... Janet Yellen and company to wait until March 2017 for an interest rate increase, ... Mack Robinson College of Business. , “The Federal Open Market Committee (FOMC) dot charts ...
(Date:5/26/2016)... California (PRWEB) , ... May 26, 2016 , ... ... associated with discovery of thousands of defective respirators, according to court documents and ... the case of William and Becky Tyler v. American Optical Corporation, Case No. ...
(Date:5/26/2016)... ... ... Connor Sports, through its Connor Cares initiative, will continue to ... Legacy Tour that will commemorate the Indiana Fever legend’s hall-of-fame career and final ... and levels of the game, Connor Sports has committed to a significantly increased focus ...
Breaking Medicine News(10 mins):
(Date:5/25/2016)... May 25, 2016 Inivata, ... precision of circulating tumour DNA (ctDNA) analysis to ... appointment of Professor Clive Morris as ... across the clinical development programme, scientific collaborations, and ... deliver significant improvements in clinical outcomes for patients. ...
(Date:5/24/2016)... , May 24, 2016 ... beide primären Endpunkte und ... Überlegenheit in ‚ausgezeichneter plus guter ... Colons    ,      (Logo: ... gab heute neue positive Daten von der MORA-Studie ...
(Date:5/24/2016)... Mass. , May 24, 2016  NxStage Medical, ... technology company focused on advancing renal care, today announced ... plans to participate in the following schedule of investor ... be made available at http://ir.nxstage.com/ . ... Jefferies Healthcare Conference NY, NY           Friday, June ...
Breaking Medicine Technology: