Robert Siegel speaks with Shree Bose, the winner of this year's Google Science Fair. Bose investigated why cancer cells become resistant to the chemotherapy drug Cisplatin. Through her research, she discovered a specific protein that makes cancer cells resistant to the drug.
Nearly two million home health care aides help seniors and people with disabilities to live independently. These caregivers often work long hours doing difficult work without overtime pay. The Labor Department has proposed rules to bring home care aides under federal minimum wage and overtime protections.
Avastin slowed the progression of the cancers a bit, but two studies didn't find the drug improved survival overall. Patients getting Avastin as part of treatment with several medicines had more side effects, including blood clots and high blood pressure, than the people who didn't get it.
Working nights is bad for your health. But scientists haven't really looked at whether the poor food available is really to blame. New studies ask whether providing better food to shift workers would be an easy fix for a big public health problem.
Failing to disclose positive HIV status to sexual partners is a crime in more than 30 states. In Iowa, it can carry a 25-year jail term. Advocates say the rules are discriminatory, and are urging state governments to reword laws that solely target HIV, but not other transmittable diseases.
Pigging out for even a day causes inflammation in the brains of lab rats, and scientists think this might help explain why it's so hard for people to lose weight. If eating too much inflames human brains, too, then scientists might be able to come up with new ideas for taming obesity.
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