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13-06-2007, 07:43 PM
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#1 (permalink)
| | Ice Princess
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Total SGC$: 1,594.34 |  Insufficient sleep increases risk of death: 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 on 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 impair heart function.
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 five 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.
'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,' said Dr Siobhan Banks, a lead author on the study.
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.
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13-06-2007, 09:24 PM
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#2 (permalink)
| | basketballer(:
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Total SGC$: 2,997.99 | Re: Insufficient sleep increases risk of death: study
wah. this news shld be shot at those who game 24hrs+ de..
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13-06-2007, 09:25 PM
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#3 (permalink)
| | Registered Members
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Total SGC$: 199.90 |  Re: Insufficient sleep increases risk of death: study
interesting article.. may we noe how many hrs of sleep is consider enuf sleep? izit 7hrs each dae regardless of age? coz mi heard as u grow older u actuali dun need to sleep many hrs.. izit true? :confused2:
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13-06-2007, 09:26 PM
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#4 (permalink)
| | Lurker
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Total SGC$: 956.90 | Re: Insufficient sleep increases risk of death: study
actually its quite common sense right  insufficient sleep isnt healthy in the first place.
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13-06-2007, 09:39 PM
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#5 (permalink)
| | Surf's Up
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Total SGC$: 666.20 | Re: Insufficient sleep increases risk of death: study
According to those who practice mediation, 4-5hrs is more than enough for a nights amount of rest as the rest of the sleeping time involves REM (rapid eye movement) and is therefore useless for an effective night.
Lol, besides, I don't remember getting more than 5hrs when i was in NS during my BMT. :devil2:
I do agree that sleep deprivation does make you short-tempered as I've experienced it before. Not so sure about the rest though. Just my 2 cents.
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14-06-2007, 04:34 PM
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#6 (permalink)
| | Experienced SGClubber
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Total SGC$: 120.40 | Re: Insufficient sleep increases risk of death: study
like japan la, work til death
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14-06-2007, 04:37 PM
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#7 (permalink)
| | Experienced SGClubber
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Total SGC$: 2,032.33 | Re: Insufficient sleep increases risk of death: study
Quote: |
Originally Posted by Fool actually its quite common sense right insufficient sleep isnt healthy in the first place. | Yalo, I agree too. Like wake up everyday like zombie shiok meh. Stressful lifestyle here so all e more must take care of health ar. | |
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14-06-2007, 07:32 PM
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#8 (permalink)
| | sevren-nek
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Total SGC$: 120.72 | Re: Insufficient sleep increases risk of death: study
ya.. if i get less than 6-7 hrs of sleep, i will get sore eyes.. | |
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14-06-2007, 11:01 PM
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#9 (permalink)
| | Registered Members
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Total SGC$: 136.80 | Re: Insufficient sleep increases risk of death: study
how is enough is indeed hard to measure... some require more than others.. i guess the lesson from the report is that one ought to get sufficient sleep, rest when its time to rest, and not push your body over the limits... | |
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15-06-2007, 12:20 AM
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#10 (permalink)
| | Experienced SGClubber
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Total SGC$: 6,300.20 | Re: Insufficient sleep increases risk of death: study
well guess is high time to remind everyone arnd us to have sufficient sleep..
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15-06-2007, 11:04 AM
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#11 (permalink)
| | Experienced SGClubber
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Total SGC$: 808.04 | Re: Insufficient sleep increases risk of death: study
I only sleep 6 hours a day.. I am going to die le... :cry3: heaven here i come | |
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22-06-2007, 08:02 PM
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#12 (permalink)
| | Expired Members
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Total SGC$: 50.20 | Re: Insufficient sleep increases risk of death: study
but sleep more...then become more sleepy ler.... | |
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