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...further x-factor in the study: What if teens weren't being honest in their self-reports about risky behavior? Berns' team addressed this question by drug-testing the 91 research subjects. Only nine had actually done drugs - in each case, marijuana - but eight of those nine admitted their drug use in the survey. No students who tested negative falsely claimed to have tried drugs. The teen brain, it appears, can be often an honest thing - even if it's not always a wise...
...beta cells, Melton's group exposed them to glucose in a dish. When sugar levels were high, the cells produced more of a protein that beta cells release when they break down sugar; when glucose levels were low, the protein levels were low as well. (See pictures from an X-ray studio...
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...family in Urdu, stopping our car at a security point as we pulled up to the gate of the five-star Pearl Continental Hotel in Lahore, Pakistan. After a thorough search, we were directed to the side doors of the hotel, where our purses passed through an airport-style X-ray machine; we ourselves were ushered through full-body scanners. Finally clearing all these checks, we at last reached the posh hotel lobby. The layers of security had done the trick—with its designer boutiques and exquisite restaurants, not a hint remained of the dangerous Pakistan that reserves...
...Staff writer Helen X. Yang can be reached at hxyang@fas.harvard.edu. CORRECTION