Regular consumption of blueberries, such as these found at Butler's Orchard in Maryland, may prevent heart attacks in middle-aged women. Maggie Starbard/NPR hide caption

itoggle caption Maggie Starbard/NPR

An analysis of many studies finds a small spare tire may be associated with longer life. But skeptics say that conclusion is rubbish. iStockphoto.com hide caption

itoggle caption iStockphoto.com

The bubbles in champagne tickle the tongue and transfer wonderful aromas to the nose. iStockphoto.com hide caption

itoggle caption iStockphoto.com

The contents of a box of some of the new foods containing caffeine collected by the Center for Science in the Public Interest. Karen Castillo Farfán/NPR hide caption

itoggle caption Karen Castillo Farfán/NPR

There's new evidence that kids can reduce calories and feel full by snacking on veggies and cheese instead of chips. famfriendsfood/Flickr.com hide caption

itoggle caption famfriendsfood/Flickr.com