Charles, Prince of Wales, smells before tasting some ice cream during a visit to Gloucestershire. Maybe he was sniffing for fat? Barry Batchelor/Getty Images hide caption

Eighty percent of college students drink, and schools have had little success reducing those numbers, or the problems caused by excessive alcohol. Toby Talbot/AP hide caption

Who will help make decisions when an older family member is hospitalized? iStockphoto hide caption

Souvlaki skewers in a replica of a tray the Mycenaeans used to prepare their food in ancient Greece. Courtesy of Julie Hruby hide caption

Adults tend to overestimate how much small children can eat, a child development researcher says. Getty Images/iStockphoto.com hide caption

So am I doing this to forget how much I hate my school? iStockphoto hide caption

Erick Munoz stands by a photo of his wife, Marlise Munoz, at home in Fort Worth, Texas, on Jan. 3. She is being kept on life support in a local hospital against the family's wishes. Fort Worth Star-Telegram/MCT via Getty Images hide caption

You can do it. But your 16-year-old can't. Teens were more likely to have accidents while eating or talking in the car. iStockphoto hide caption

With our design, gingerbread families everywhere can enjoy the holidays without having to worry about their roofs caving in. Morgan Walker/NPR hide caption

A celebrity's efforts to educate the public about health risk may have very limited effects. Evan Agostini/AP hide caption

The deconstructed, hexagonal salad nicoise: perfect for all your gourmand geek friends. Courtesy of Chris-Rachel Oseland hide caption

A simulated patient at the University of Malaya makes use of different materials to mimic the look and feel of human tissue. Courtesy of Vicknes Waran hide caption

Developing a vaccine for meningitis B was tricky. Even the existing vaccine doesn't protect against all B strains. Josef Muellek/iStockphoto.com hide caption

The Ivy League school has begun vaccinating nearly 6,000 students to try to stop an outbreak of type B meningitis in an unusual federal government-endorsed administration of a drug not generally approved for use in the U.S. Mel Evans/AP hide caption

Students at Northeast Elementary Magnet, in Danville, Ill., play around. Fewer than 1 in 5 parents polled said their kids were getting physical education daily. Seth Perlman/AP hide caption