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November 27, 2012 KHNA Florida law prohibits doctors from discussing gun ownership with patients. After some doctors fought the law in court, a federal judge blocked its enforcement. Now the state has appealed the injunction, and advocates for both sides are weighing in.

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November 27, 2012 The rare condition is starting to be seen outside of the Lone Star tick's known territory in the southeastern U.S. Scientists say this could be due to an expansion of tick territory or simply that people are being diagnosed after they leave the area.

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November 26, 2012 The wildly popular mosh pits for the school-age set have become a common source of injuries that send kids to the hospital. Doctors call for safer designs for inflatable bouncers and better guidelines for their use.

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November 26, 2012 Scientists say that whether tipping waiters or trading Christmas cards, we're programmed to reciprocate when we receive a gift. But the rule of reciprocity can also complicate politics and medicine.

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November 21, 2012 Ultrasound often catches fetuses opening their mouths, but whether they're really yawning or not has been up for debate. Now, with some fancy ultrasound techniques, scientists have show that babies do indeed yawn in the womb.

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November 21, 2012 The last three decades have seen a dramatic increase in early-stage, but not late-stage, breast cancers, as mammography has become routine. Some researchers are concerned that women are being treated for cancers that would never turn deadly.

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November 21, 2012 Easier access to oral contraceptives could reduce unintended pregnancies, doctors say. But the Food and Drug Administration would have to allow purchases of the pill without a prescription, and that's not going to happen anytime soon.

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November 20, 2012 More than 40 percent of surgical complications occur after patients are at home. The solution for the problem isn't keeping patients in the hospital longer, researchers say. Better instructions to patients and improved monitoring could help.

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November 20, 2012 KHNJust because medical marijuana is legal where you live doesn't mean your health insurer will deem it worthy of coverage. The feds still classify it as a controlled substance with no accepted medical use and a high potential for abuse, so insurers and employers are wary of paying for it.

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November 19, 2012 Endurance athletes often turn to the same stimulant that gives your morning cup of joe its jolt: caffeine. They're increasingly using caffeinated gels and drinks when they compete. But how much is too much?

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November 19, 2012 Researchers and companies are bringing movement back into the office with treadmill desks, walking meetings and games. Employees say it has helped them lose weight and be more productive.

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November 16, 2012 Despite the perception that Americans are a bunch of boozers, a new study shows men in their 20s and 30s take in about 175 calories a day in alcohol; for women, it's about 60 calories. Still, the government warns, it's a little more than we should be imbibing on a daily basis.

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November 15, 2012 Scientists have found rappers and jazz musicians use their brains in similar ways when it comes to improvisation. Brain scans show distinct differences in which parts of the brain are most active during rap performances of memorized pieces compared with those that are done freestyle.

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November 14, 2012 Some doctors thought Lyme disease was a chronic condition that relapsed. Now, there's evidence that recurring cases of Lyme disease may actually be caused by multiple, discrete tick bites and infections.

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November 13, 2012 For most people, a nonfasting cholesterol test will do just fine, a Canadian study suggests. A meal beforehand is unlikely to change key ratios of fats in the blood that doctors use to assess a person's risk for heart disease and stroke.

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