Word: braine
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...There are clearly good reasons for this; medicine as a whole is getting better and we expect higher levels of knowledge in our docs. I certainly wouldn't want anyone but a neurosurgeon dissecting a tumor out of my brain, or anyone but smart oncologist coming up with the drug cocktail that might save my life from a cancer. It's usually not that hard, though. The great bulk of patient visits are for really simple things - questions that a reasonably bright resident would get right. Most pneumonias, for example, are pretty easy to treat; the internist should have...
...field of sleep and dreams, these are promising times. But there's been no year more momentous than 1953. Until then, scientists had equated sleep with flicking off a desk lamp. For more than two decades they'd been able to record brain activity in sleep, but the feeling was, why bother? Why waste reams of costly graph paper making electroencephalogram recordings of what was thought to be a neurological desert? With no strong expectation of finding otherwise, University of Chicago researchers Eugene Aserinski and Nathaniel Kleitman decided it was worth doing, monitoring 10 subjects in a laboratory. Their findings...
...What they discovered was a sleep state in which the brain is, in many ways, every bit as active as when it's awake; a state in which, compared with other stages of sleep, the heart beats faster, breathing quickens, blood pressure and blood flow to the brain (and sexual organs) rise, while the eyes move rapidly beneath their lids. Brain waves are low-voltage and high-frequency-the opposite to the brain waves of deep sleep, more like what goes on when a person is awake, thinking and talking. Awoken from this paradoxical state that Aserinski and Kleitman called...
...recent advances in brain science, it shouldn't surprise that the riddle of dreaming hasn't been cracked. "We still don't know why we sleep, let alone why we dream," says Dorothy Bruck, professor of psychology at Melbourne's Victoria University. It seems commonsensical that sleep is a restorative phase for brain and body, and there's some evidence that the effects of sleep deprivation are the result of minor brain damage that would normally be repaired when we're asleep. But despite their best efforts, scientists have been unable to pinpoint what's going on in sleep that...
Epstein's central psychobiological contention--that teens have the brain potential to make adult-level judgments--also doesn't hold up. True, teens have better reaction times and memories than adults, and most have adult-like moral-reasoning skills by adolescence. But a 2000 paper in Behavioral Sciences and the Law confirms common sense: adolescents score significantly worse than adults on assessments of their psychosocial maturity. Teens may know how to make good decisions, but they don't actually make good decisions as often as adults. Epstein points out that some teens do score higher than some adults...