Word: sleepings
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...brightness of television studio lights, and compared their effects to those of 300-lux bulbs, which are found in office and retail settings. "I was surprised by the results on cognition," says Van Someren. "I had expected, based on previous studies, that we would find improvements in sleep. But I hadn't expected to see the effect on cognition...
...neurologist at Johns Hopkins School of Medicine. Light, the study's authors suspect, works on the body's circadian clock, which is regulated by a cluster of cells in the brain's hypothalamus. Those cells release agents that, along with the hormone melatonin, help to regulate the body's sleep-wake cycle and are responsible for alerting the brain when the cycle is broken - as in the case of jet lag, for example. "With disregulation of the circadian rhythm, there are lots of changes in hormonal status and metabolites in the blood," says Albert. "So you can imagine that would...
...turned off. Two days later, Edita Burgos called a hasty press conference to ask for help finding her son. Tips began to trickle in. One tipster, who claimed to be a former army intelligence officer, said that Jonas Burgos had been snatched by the Philippine military. "I had no sleep," Edita Burgos recalls. "I was imagining all sorts of horrors...
...think we can speculate [about why people who sleep from 6.5 to 7.5 hr. live longer], but we have to admit that we don't really understand the reasons. We don't really know yet what is cause and what is effect. So we don't know if a short sleeper can live longer by extending their sleep, and we don't know if a long sleeper can live longer by setting the alarm clock a bit earlier. We're hoping to organize tests of those questions...
...reasons I like to publicize these facts is that I think we can prevent a lot of insomnia and distress just by telling people that short sleep is O.K. We've all been told you ought to sleep 8 hr., but there was never any evidence. A very common problem we see at sleep clinics is people who spend too long in bed. They think they should sleep 8 or 9 hr., so they spend [that amount of time] in bed, with the result that they have trouble falling asleep and wake up a lot during the night. Oddly enough...