In Focus:

To Prevent Most Cavities, Kids Need This One Thing

There’s a quick and easy way to prevent 80 percent of cavities, but most kids don’t get it, federal health officials said Tuesday.

The treatment, dental sealants, works well, but only 60 percent of kids who need sealants get them, the Centers for Disease Control and Prevention says.

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Many Fast-Food Containers Have Risky Chemical

The next time you get a muffin with your coffee or pick up a hamburger at a drive-thru, you could also be getting a side of chemicals that have a poor safety and environmental record, a new study shows. Researchers tested more than 400 samples of bags, wrappers, boxes, and cups...

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Bugs in the Christmas Tree?Should You Worry?

Sam Minturn's Christmas tree farm in Hilmar, CA, sits next to an alfalfa field. One recent holiday season, the ladybugs from the field decided his trees were the perfect warm place to spend the winter. "We went out and put a ribbon on every tree that had ladybugs" to alert customers,...

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Asthma and menstruation

Just before and during your period, progesterone and estrogen levels decrease. In some women, these hormone changes may worsen asthma. The relationship between hormones and asthma is complex, varies from person to person and isn't fully understood.   Other changes in a woman's life, in addition to the menstrual cycle, can cause...

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