Subsequent research, although desultory, showed that 60% or more of depressives respond often dramatically to a night of sleep deprivation, and that the transformation of mood usually occurs in the latter half of the night.
ECONOMIST: People, like all living things, are four dimensional
Dr Janet Mullington, of Harvard Medical School, said there were many questions still to be answered about the effect of sleep deprivation.
"Only in recent years have we begun to realise the prevalence and severity of sleep deprivation in our population, " said Professor Gillin.
The findings also tie into research attempting to do away with sleep, such as by finding a drug that could eliminate the effects of sleep deprivation.
Despite months of sleep deprivation and rationed diets, the 39 year-old skipper quips that the biggest challenge of the whole project was finding a financial backer in the first place.
"The more you know your teammates, the less likely you are to take comments made in the midst of sleep deprivation personally, " says Sara Ballantyne, 38, a professional mountain-bike racer who helped lead Team Vail to victory in last year's Eco-Challenge in Morocco.
Moreover, a liberal such as this reformed ex-rationalist might also argue, albeit while in the throes of sleep deprivation and having suffered from multiple starvation-induced hallucinations, that gift-giving is a social good because it tends to redistribute income from the top to the bottom.
FORBES: Let's Have Ourselves A Very "Donnie Brasco" Christmas
While the ill effects of depression on sleep are well known, he adds, mounting evidence suggests that sleep deprivation in and of itself can contribute to depression.
Excessive net-surfing and television are leaving 12-year-olds suffering the symptoms of chronic sleep deprivation, say experts.
Ducking inside the cramped cube, which offers a reasonable facsimile of the claustrophobia of insomnia, you're asked to contribute answers, in the form of text and drawings, to sleep-deprivation questions that are simultaneously projected onto the outside of the cube for all to see.
However, once the lack of food and sleep deprivation set in, tempers are likely to fray.
The U.S. Army field manual classifies sustained sleep deprivation as a form of mental torture.
It all adds up to a sport that combines strenuous physical demands with the mental challenges of running a Silicon Valley venture, plus a generous dollop of good old-fashioned sleep deprivation.
Just like humans, airplane passengers of the four-legged variety must also contend with the risk of respiratory infections, dehydration and sleep deprivation.
Which brings us to an underlying cause of these daymares and sinister thoughts -- sleep deprivation.
She said it was possible that the change to inflammatory markers produced in sleep deprivation experiments were merely short-term reflections of the battle against sleepiness.
Sleep deprivation also led to an increase in the activity of the sympathetic nervous system, which controls many of the body's "involuntary" functions.
However, the team found that eventually both methods of memory retrieval were as effective in the tasks, meaning that while sleep deprivation affects brain function it does not affect overt behaviour, as previously thought.
While no one will dispute the fact that many of our current habits concerning food consumption, physical activity, stress management and sleep deprivation could use some positive invigoration.
应用推荐