Study says that 79 % of U.S. babies born in 2011 were breast - fed . Extreme weather kills 2,000 Americans each year , CDC report says . Autistic brains seen as less flexible at switching tasksCerebral Cortex . When switching tasks , brains of children with autism have less connectivity , study says .
Study says that 79 % of U.S. babies born in 2011 were breast - fed . Extreme weather kills 2,000 Americans each year , CDC report says . When switching tasks , brains of children with autism have less connectivity , study says .