Cleanup Efforts Underway After at Least 16 Tornadoes
About 16 tornadoes hit America's heartland including Colorado, Kansas and Louisiana with no injuries reported, and the worst damage was registered in Oklahoma.
Two new cholesterol drugs were shown to be safe and effective in new research presented at an annual meeting of the American Heart Association on Sunday.
Researchers are working with growers to help counter the effects of more volatile weather systems with improved hop varieties that can withstand drought and by adding winter barley to the mix.
The proportion of U.S. kindergartners exempted from school vaccination requirements has hit its highest level ever, 3%, U.S. health officials said Thursday.