freediver
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Beattie's sleep claims 'irresponsible'
http://www.smh.com.au/news/National/Beatties-sleep-claims-irresponsible/2007/09/03/1188783120835.html
A claim by Queensland Premier Peter Beattie that he only needs five hours shut-eye a night is "totally irresponsible" and "very likely untrue", sleep experts say.
Scientists at an international sleep conference say politicians often make "questionable" claims about operating well on less sleep that mislead the public.
Mr Beattie has claimed he never sleeps in and functions on adrenaline, saying "why would you want to sleep your life away?"
"I understand Mr Beattie thinks he can operate just fine on five hours a night but I find that incredibly doubtful," said Professor Ron Grunstein, co-convener of worldsleep07 in Cairns and a sleep researcher at the Woolcock Institute of Medical Research at the University of Sydney.
"He's either doing himself a lot of harm, he's napping during the day or he's not telling the truth."
Truckies admit nodding off while driving
http://www.smh.com.au/news/National/Truckies-admit-nodding-off-while-driving/2007/09/03/1188783120239.html
About 40 per cent of truck drivers have admitted to falling asleep at the wheel at least once in the past three months, a sleep conference has heard.
A survey of 255 professional interstate truckies has found that almost all are very aware of their own sleepiness on the road, but this has very little bearing on whether they choose to take a break.
Instead, work regulations, management pressures and the need to meet schedules and deadlines were more likely to dictate the drivers' behaviour on long haul trips, according to research by Monash University presented at worldsleep07 in Cairns.
Lead researcher, PhD student Ray Misa, said this implied that fatigue detection technology used by some companies to monitor a driver's tiredness may be ineffective.
"Our results showed that he could be aware of how sleepy he is but this won't stop him driving," he said.
Lack of sleep tied to kids weight gain
http://www.smh.com.au/news/National/Lack-of-sleep-tied-to-kids-weight-gain/2007/09/03/1188671836219.html
Boys are sleeping less than girls and this lack of shut-eye is translating into fat, a study of Australian kids shows.
A survey of 1,000 Adelaide children presented to an international sleep conference has found that boys aged five to 10 spend significantly less time in bed than girls of the same age.
While both sexes were going to bed at the same time, boys were waking up much earlier on both school days and weekends.
And this less time in bed seems to be directly linked to weight gain, according to weight and sleep data collected from parents at 23 schools.
"We found that the males that slept less on school days tended to be heavier than the girls who slept less," said lead researcher Sarah Biggs, from the University of Adelaide.
"We're not exactly sure why but it might be that boys are falling short of a critical period of sleep that could be impacting on weight."
The relationship between sleep and weight is still being explored but researchers believe kids who sleep less may gain weight because they have more time to eat or because they're too tired to exercise.
A third theory gaining momentum is that lack of sleep triggers changes in two key metabolic hormones - the brain hormone leptin, and ghrelin, made by the stomach - that have a knock-on effect on weight.
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