The purple-stained Rothia dentocariosa bacteria are frequently found in the human mouth and respiratory tract. CDC hide caption

itoggle caption CDC

Residents of Flint, Mich. (shown here in January), have been protesting the quality and cost of the city's tap water for more than a year. Steve Carmody/Michigan Radio hide caption

itoggle caption Steve Carmody/Michigan Radio

Longer lines in the cafeteria and shorter lunch periods mean many public school students get just 15 minutes to eat. Yet researchers say when kids get less than 20 minutes for lunch, they eat less of everything on their tray. iStockphoto hide caption

itoggle caption iStockphoto
David Williams/Illustration Works/Corbis

People who don't get enough sleep show higher levels of inflammation, say scientists who study colds. Smoking, chronic stress and lack of exercise can make you more susceptible to the viruses, too. Frederic Cirou/PhotoAlto/Corbis hide caption

itoggle caption Frederic Cirou/PhotoAlto/Corbis

Brenda Hummel and her 7-year-old daughter Andrea in their home near Des Moines, Iowa. Andrea was born with severe epilepsy and gets her health care through Medicaid. Clay Masters/Iowa Public Radio hide caption

itoggle caption Clay Masters/Iowa Public Radio

At a Minecraft camp in Shaker Heights, Ohio, kids trade secrets about making their virtual worlds come to life. Sarah Jane Tribble/WCPN hide caption

itoggle caption Sarah Jane Tribble/WCPN

Can you spot the four laundry pods? CR/John Powers and Ariana Salvato/Apotrophe/Courtesy of Consumer Reports hide caption

itoggle caption CR/John Powers and Ariana Salvato/Apotrophe/Courtesy of Consumer Reports