Navigation Links
More Evidence That Alcohol Hinders Good Sleep
Date:8/15/2011

MONDAY, Aug. 15 (HealthDay News) -- You might want to take a pass on that nightcap, a new study suggests.

Japanese researchers report that alcohol hinders the restorative functions of sleep.

The findings, from a study of 10 male university students, appear online and in the November print issue of the journal Alcoholism: Clinical & Experimental Research.

Booze's effect on sleep appears linked to a disruption in nervous system function.

Normally, as people sleep through the night, "the parasympathetic nervous system, responsible for 'rest-and-digest' activities, is dominant over the sympathetic nervous system, responsible for stimulating activities," Yohei Sagawa, a physician in the department of neuropsychiatry at the Akita University School of Medicine, explained in a journal news release. "We wanted to investigate how alcohol may change this complementary relationship."

To do so, Sagawa and his colleagues gave study volunteers different levels of alcohol -- 0 grams (control group), 0.5 grams (low dose), and 1.0 grams (high dose) -- before the participants went to bed on three separate occasions.

Using electrocardiograms, the researchers then focused on the relationship between the volunteers' heart rate variability and their sleep. The team found that alcohol increased heart rate and interfered with the restorative functions of sleep -- and the more alcohol the participants drank, the greater the effect.

"Although the first half of sleep after alcohol intake looks good on the EEG, the result of the assessment regarding the autonomic nerve system shows that drinking leads to insomnia rather than good sleep," Sagawa said.

The effect on habitual drinkers might be even worse, a study co-author said.

"The current study evaluates the acute effects after only a single dose of alcohol intake, and subsequently found a negative health consequence," Seiji Nishino, director of the Sleep & Circadian Neurobiology Laboratory at Stanford University School of Medicine in La Jolla, Calif., said in the news release. "Many subjects habitually drink alcohol, and if the reduction of parasympathetic nerve activity during sleep chronically occurred, negative health consequences may be much larger and may induce various diseases."

"It is generally believed that having a nightcap may aid sleep, especially sleep initiation," Nishino added. "This may be true for some people who have small amounts of alcohol intake. However, it should be noted that large amounts of alcohol intake interfere with sleep quality and the restorative role of sleep."

More information

The U.S. Centers for Disease Control and Prevention has more about sleep and sleep disorders.

-- Robert Preidt

SOURCE: Alcoholism: Clinical & Experimental Research, news release, Aug. 15, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. More Evidence Tanning Beds May Be Addictive
2. More Evidence That Exercise May Keep The Brain Sharp
3. Study shows new evidence of age-related decline in the brains master circadian clock
4. More Evidence That Early Treatment Can Stop HIVs Spread to Partners
5. More Evidence CT Scans Better at Detecting Lung Cancer
6. Little Evidence That Diet, Lifestyle Cuts Alzheimers Risk
7. Strong evidence supports prognostic value of circulating tumor cells in breast cancer
8. ASTRO publishes evidence-based guideline for thoracic radiotherapy
9. Evidence-Based Heart Attack Care Reduces Deaths: Study
10. New evidence that chronic ulcerative stomatitis is an autoimmune disease
11. Evidence Weak to Support Many Medications for Autism: Study
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
More Evidence That Alcohol Hinders Good Sleep
(Date:8/22/2017)... ... August 22, 2017 , ... John ... Founder and Managing Member for t4 Leadership Development & Consulting. He has spent ... definition of “success”: physician leadership development, servant leadership, data driven process improvement, and ...
(Date:8/21/2017)... ... August 22, 2017 , ... Nanoparticle research ... health and safety. By learning and implementing best practices for containment using ventilated ... webinar, attendees will gain a better understanding of a method for safely testing ...
(Date:8/21/2017)... ... August 21, 2017 , ... Five chefs from local senior assisted living ... Center. , Guests will be able to vote for their favorite Chef among ... with Fennel Dill Salad, Feta Cheese Sauce & Garlic Pita Crisp, Greek Mountain Ice ...
(Date:8/21/2017)... ... August 21, 2017 , ... The American Hospital Association ... (AHN), a Highmark Health company, to its Board of Trustees for a three-year term ... of health care provider organizations and individuals that are committed to the improvement of ...
(Date:8/20/2017)... ... August 20, 2017 , ... ... ComplyPAK™ Compliance Management System has assisted multiple clients in successfully passing audits ... Service Organization Control Level 2 (AICPA SOC Level 2), and State Data Use ...
Breaking Medicine News(10 mins):
(Date:8/7/2017)... -- Diplomat Pharmacy, Inc. (NYSE: DPLO ) today ... effective Aug. 7, 2017. ... interests and will serve as president emeritus during a planned, ... in multiple leadership roles since he joined Diplomat with the ... provided decisive, strategic leadership which continues to benefit our patients ...
(Date:8/3/2017)...  Opioid addiction and other drugs of abuse, blood ... threatening outcomes, were problems taken on directly as laboratory ... support them, met this week. This according to Kalorama ... of abuse, procalcitonin and acute kidney injury were key ... meeting in San Diego, CA. ...
(Date:8/1/2017)... CerSci Therapeutics , a non-opioid drug development firm based ... notice from the National Institute on Drug Abuse (NIDA) ... has been awarded a Direct-to-Phase II Small Business Innovation ... an additional $1,000,000 to follow in 2018. These funds ... lead non-opioid drug candidate CT-044 to the Food and ...
Breaking Medicine Technology: