Can you name the 10 emotions conveyed above? The first six are basic emotions. The last four are complex emotions that combine two of the basic ones. (Check at the bottom for the answers.) Courtesy of Aleix M. Martinez hide caption

itoggle caption Courtesy of Aleix M. Martinez

Researchers say intervention in early childhood may help the developing brain compensate by rewiring to work around the trouble spots. iStockphoto hide caption

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Manuel "Manny" Aguirre, 80, has been mixing cocktails at Musso and Frank Grill in Los Angeles for more than two decades. He works part time and could retire — but he doesn't want to. Courtesy of Musso and Frank Grill hide caption

itoggle caption Courtesy of Musso and Frank Grill

Doctors may eventually be able to diagnose "preclinical" Alzheimer's in patients who have abnormal brain scans but who aren't yet showing behavioral symptoms of the disease. iStockphoto hide caption

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Subramaniam Gurusamy holds a portrait of his son Puspanathan, who was onboard the missing Malaysia Airlines flight, on Friday in his home in Teluk Panglima Garang, outside Kuala Lumpur. Manan Vatsyayana/AFP/Getty Images hide caption

itoggle caption Manan Vatsyayana/AFP/Getty Images

Adam Lanza killed 20 children and six teachers Sandy Hook Elementary School in Newton, Conn., in 2012. His father has spoken to the media for the first time since the incident. Jason DeCrow/AP hide caption

itoggle caption Jason DeCrow/AP