Parents are currently advised to switch toddlers to reduced-fat milk at age 2. David M. Goehring/Via Flickr hide caption

itoggle caption David M. Goehring/Via Flickr

A shopper at a branch of South African retailer Pick n Pay in Johannesburg. Health insurer Discovery offers rebates on health food at the chain to its members who enroll in a health promotion program. SIPHIWE SIBEKO/Reuters /Landov hide caption

itoggle caption SIPHIWE SIBEKO/Reuters /Landov

Japanese women drink green tea during an outdoor tea ceremony in Kobe, Japan. Making the brew a daily habit may be protective against stroke. Buddhika Weerasinghe/Getty Images hide caption

itoggle caption Buddhika Weerasinghe/Getty Images

Noah Zandan shows off his Zeo sleep-tracking headband. His other self-tracking devices are on his wrists. Noah and his father, Peter, are both part of the growing "Quantified Self" movement. Elise Hu/NPR hide caption

itoggle caption Elise Hu/NPR

A Coca-Cola mural in Vicksburg, Miss., where the soda was first bottled in 1894. Mississippi's governor is expected to sign a bill that would prevent the regulation of soda portion sizes by counties or towns. pratt/via Flickr hide caption

itoggle caption pratt/via Flickr

A 3-D reconstruction of Mummy 38's CT scans shows calcification in her aorta and iliac arteries. Courtesy of The Lancet hide caption

itoggle caption Courtesy of The Lancet

Washington Post food editor Joe Yonan has made the decision to go vegetarian. Cristian Baitg/iStockphoto.com hide caption

itoggle caption Cristian Baitg/iStockphoto.com

Most people polled in a new survey said government programs to make fresh fruits and vegetables more affordable sound like a great idea. iStockphoto.com hide caption

itoggle caption iStockphoto.com

The GetHealth app was a runner-up at the recent Hackovate Health Innovation Competition held in Kansas City, Mo. Courtesy of GetHealth Limited hide caption

itoggle caption Courtesy of GetHealth Limited