- Home
- Mental Health
- Others
- Too Much or Too Little Sleep - Increases Mortality Risk
Too Much or Too Little Sleep - Increases Mortality Risk
- By Jennifer McVey
- Published September 8th, 2008
- Others
- Unrated
According to various investigators, it has been known that too much of sleep can carry almost 20% greater mortality risk. It has been said that sleep has a complicated association with mortality. Both excess of sleep or too little of it, have been associated with an increased mortality risk. The research says that an optimal amount of sleep seems to be somewhere around seven to eight hours a day.
It should be noted that this study was based on evaluation of a database, not a prospective, randomized clinical study.
“Men, in particular, had a significant increase in the associations between natural death and both stable long and stable short sleep,” as stated by Christer Hublin, M.D., Ph.D., of the Finnish Institute of Occupational Men’s health, and colleagues, reported in issue of Sleep.
The findings are based on a intact evidence of sleep’s impact on the health factor of men, as well as mortality risk, but also show that the association is complicated.
“The exact mechanisms [of the association] remain unclear, and they should be assessed in experimental settings and other longitudinal studies,” Dr. Hublin and colleagues concluded.
“Although the effect of sleep on mortality is fairly modest compared to . . . smoking or components of the metabolic syndrome, it is still of considerable significance as it is associated with several common disorders such as cardiovascular diseases and diabetes,” they added.
According to various
studies that have been conducted over the past twenty years or so, a general U-shaped curve association between sleep length and mortality have been revealed, with the lowest mortality being associated with around seven hours of sleep per day, according to various authors.
Also a data has been revealed that an increased mortality risk is possible in association with an extended sleep (for more than eight hours.
On the other hand, the impact of less amount of sleep on mortality has tended to decrease after adjustment for those things that are linked with mortality, such as smoking, alcohol use, and physical inactivity.
Dr. Hublin and other researchers reviewed data from the Finnish Twin Cohort. The data involved 21,268 twins ages 18 as well as adults who filled in a lot of questionnaires between 1975 and 1981. The the questions that were implemented in the questionnaires were related to various sleep habits of people.
On the basis of their responses, people were given certain categories like ,Short sleepers (who sleep for less than seven hours), Average sleepers, Long sleepers (who sleep for more than eight hours), Sleeping well, Sleeping fairly well, Sleeping fairly poorly or poorly Nonusers, infrequent users, or frequent users of hypnotics or tranquilizers and so on.
A lot of methods were implemented in order to know about the hazard ratios for mortality during 1982 to 2003 by sleep-related variables.
Findings: Increased mortality risks associated with: Short sleep-men +26% and women +21%Long sleep-men +24% and women +17%Frequent hypotnotic use-men +31%, women +39%
It should be noted that this study was based on evaluation of a database, not a prospective, randomized clinical study.
“Men, in particular, had a significant increase in the associations between natural death and both stable long and stable short sleep,” as stated by Christer Hublin, M.D., Ph.D., of the Finnish Institute of Occupational Men’s health, and colleagues, reported in issue of Sleep.
The findings are based on a intact evidence of sleep’s impact on the health factor of men, as well as mortality risk, but also show that the association is complicated.
“The exact mechanisms [of the association] remain unclear, and they should be assessed in experimental settings and other longitudinal studies,” Dr. Hublin and colleagues concluded.
“Although the effect of sleep on mortality is fairly modest compared to . . . smoking or components of the metabolic syndrome, it is still of considerable significance as it is associated with several common disorders such as cardiovascular diseases and diabetes,” they added.
According to various
Also a data has been revealed that an increased mortality risk is possible in association with an extended sleep (for more than eight hours.
On the other hand, the impact of less amount of sleep on mortality has tended to decrease after adjustment for those things that are linked with mortality, such as smoking, alcohol use, and physical inactivity.
Dr. Hublin and other researchers reviewed data from the Finnish Twin Cohort. The data involved 21,268 twins ages 18 as well as adults who filled in a lot of questionnaires between 1975 and 1981. The the questions that were implemented in the questionnaires were related to various sleep habits of people.
On the basis of their responses, people were given certain categories like ,Short sleepers (who sleep for less than seven hours), Average sleepers, Long sleepers (who sleep for more than eight hours), Sleeping well, Sleeping fairly well, Sleeping fairly poorly or poorly Nonusers, infrequent users, or frequent users of hypnotics or tranquilizers and so on.
A lot of methods were implemented in order to know about the hazard ratios for mortality during 1982 to 2003 by sleep-related variables.
Findings: Increased mortality risks associated with: Short sleep-men +26% and women +21%Long sleep-men +24% and women +17%Frequent hypotnotic use-men +31%, women +39%