Word: braine
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...More than 60% of test subjects sniffing rose odor had decreased sensitivity to the smell when recumbent. The phenomenon could be the body's way of turning off potential distractions while you're trying to fall asleep, or it might be the result of fluids that rush through the brain while you're supine. Either way, the stifling effect may be an important consideration for reading MRI or PET scans, which take images of the body while you're lying down...
...that the FDA has approved a new drug--only the second to get its O.K.--to help smokers quit. This one, Chantix, was designed specifically to address nicotine cravings that make the habit so hard to break. Chantix mimics the active ingredient in nicotine and can fool the brain into thinking it has had its nicotine fix--without nicotine's addictive qualities or all the damage smoking does to the heart and lungs. But don't assume that simply popping a few pills will make you kick the habit; the most successful long-term quitters also participated in counseling...
...Rohan Hazra at the National Institutes of Health has been following patients like Daniels since their birth. He is on the lookout for behavioral changes that could be the legacy of drug effects on the central nervous system. "We are beginning to see subtle but profound impacts on the brain," he says. "Among teenagers infected [at birth], there seem to be high rates of ADHD, psychiatric disorders and cognitive problems...
...BRAIN IN A NEW WORLD
Part of the problem we have with evaluating risk, scientists say, is that we're moving through the modern world with what is, in many respects, a prehistoric brain. We may think we've grown accustomed to living in a predator-free environment in which most of the dangers of the wild have been driven away or fenced off, but our central nervous system--evolving at a glacial pace--hasn't got the message...