Even though humans sleep away about one-third of their lives, sleep
science is relatively new. But the latest results show that sex trumps
sport as a sleeping aid.
These are just some of the results presented at the annual
convention of the German Sleep Society (DGSM) in Kassel, central
Germany, where 1 500 scientists recently gathered to discuss factors
contributing to good and healthy sleep.
"Earlier, people thought that sleeping disorders were the result of
other diseases. Today, we know that it's the opposite and many diseases
get worse or exist because the patient sleeps poorly," says Geert
Mayer, head of the DGSM.
"Cardiological and circulatory problems are often precipitated by
unsound sleep lasting for a longer period. We've also established a
significant connection between sleeping disorders and diseases like
dementia or Parkinson's," added the neurology professor.
Tiredness affects ability at school
According to one study, 69% of Parkinson's patients have had
sleeping disorders in the past which often start in childhood. "About 40% of all small children have sleeping disorders. They usually disappear over time, but it's not unusual for older children to suffer from daytime sleepiness. About one-third of
pre-teens and teens are affected," said Alfred Wiater, the head of a
paediatrics clinic in Cologne.
The numbers are significantly higher in Japan. "But they're rising
here as well, which has a major affect on academics. Imagine a class
where a third of the students aren't participating because they're dead
Wiater recommends reducing a child's media consumption to promote
sleep. "An hour a day in front of the television or a computer can be
enough to lead to sleeping disorders."
But timing is also a key factor. "An exciting movie or video game right before bedtime delays tuning out. The contents of the show or the game are also important as they could lead to nightmares."
'Everyone needs sleep'
And exhaustion in children is no small matter. "Most children with
sleeping disorders have some kind of mental disturbances, like fears,
depression or hyperactivity. Four hours for men, five for women and six for idiots," was
Napoleon Bonaparte's take on sleeping requirements. He is believed to
have survived on even less sleep.
"There are no hard and fast rules. Not even a rule of thumb," says
Mayer in response. "We often get old people who want their eight hours of sleep. But
their body doesn't need that much. Others complain that they only feel well rested after nine hours of sleep, which is also completely normal."
People who try to impress others by getting away with as little
sleep as possible can soon find themselves in dangerous territory. "Everyone needs his sleep. And we have no proof that people can train themselves to get by with less sleep."
Nonetheless, in the industrialised world, the amount of time spent sleeping has dropped by 1.5 hours. The average German sleeps about 7.1 hours a day. To ensure that sleep is recuperative, researchers recommend a healthy diet and plenty of exercise. Fresh air and exercise contribute to healthy sleep. But it is best to take things easy before bedtime.
"Exercise and other stimuli sends out hormones that keep the body
awake internally," warns Mayer. Though there is one exception to the
rule - sex. "We suspect there are positive benefits because the body gets
stimuli, but then relaxes." – (Sapa, November 2008)
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