Findings from a recent UCSD study released yesterday have awakened a
flurry of controversy. Cheryl Clarke
Findings by UCSD
psychiatrist and nationally known sleep researcher Daniel Kripke
challenge the long-held recommendations from many health organizations
and the National Sleep Federation that people need eight hours of sleep
to maintain good health.
The UCSD study analyzed responses that 1.1 million people gave to an
American Cancer Study questionnaire in 1982. Six years later their
answers were compared with their death rates.
Don't Waste Your Breath
will lose 2 hours
and 50 minutes of life per day for this excess sleep of half an hour.
For this reason it is found that people who are not early risers are
usually short-lived. more
The findings showed that people who regularly slept eight hours were
twelve percent more likely to die within the six-year period in which
the study took place. They were four to five percent more likely to die
than those sleeping six hours. Even those sleeping five hours had lower
death rates than individuals who slept eight hours.
And those who sleep for nine or ten hours a day have a mortality
equivalent to people who are moderately obese, somewhat more than all
the other sleeping groups, the research concluded.
"We don't know what the causal factors are," Kripke said in an
interview. "But it's possible that sleeping too much, like eating too
much, is bad for your health. And it might be true that a little bit of
sleep or sleep restriction, like reducing your diet, could be good for
The study and it's findings has been attacked by the "sleep industry"
which makes billions of dollars selling drugs to put people to sleep
and does not want people to think sleeping less than eight hours is a
more healthy lifestyle than their drug-induced sleep...