19-40 Segment 1: Does Prenatal Fluoride Lower IQ?

Fluoride in community drinking water has been controversial since its introduction nearly 75 years ago. A new study adds to this with evidence that pregnant women who drink fluoridated water may produce children with slightly lowered IQ. The study author and two other experts discuss what’s known and what the ramifications of the study could be for communities, for oral health, and for children.

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19-22 Segment 1: Why Parents Don’t Vaccinate

Measles had been declared eliminated in 2000, but has come roaring back because of the increasing number of people who have not been vaccinated. Parents may have legitimate fears of side effects, but claims vaccines are unsafe are not true. Experts discuss the complicated psychological reasons vaccine refusal exists despite this, and what may help change minds to promote public health.

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19-19 Segment 1: Cancer Suppression: Lessons from Pachyderms

DNA mutations happen all the time in the body, but the immune system usually detects and deals with them. When the system fails, cancer results. Yet some animals, such as elephants, almost never get cancer, and scientists have learned that the elephant DNA repair system is 20 times more powerful than the human system. Experts explain how they hope to tap this knowledge.

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19-13 Segment 1: “Difficult” Patients: Questioning Authority

Patients used to accept doctors’ orders without question. Today, more are asking questions and challenging their doctors’ opinions. However, even those who do it politely are likely to be labeled “difficult.” A doctor whose late wife nearly made a career of being a difficult patient discusses how patients can do it respectfully and fruitfully.

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