Concussions affect the thinking of teenagers more than they do that of adults or children, according to a new study. But all three age groups show lasting problems with working memory after sports concussions.
During the last three months of the year, the U.S. economy picked up its pace of growth. The Commerce Department revised its previous estimate today and said the gross domestic product expanded at an annual rate of 3 percent, which exceeded the previous estimate of 2.8 percent and was better than the third quarter's 1.8 percent pace.
The AP reports:
"The growth estimate was revised up because consumers spent more than first thought, and businesses cut spending by much less.
Milwaukee Brewers outfielder Ryan Braun waits for his turn to take batting practice at baseball spring training in Phoenix. The person who collected Braun's urine samples that tested positive for elevated testosterone levels says he followed the collection program's protocol.
The AP reports that "security and airport officials" said Mohammed Ibrahim Makkawi was arrested when he arrived in the country on Wednesday from Pakistan.
Makkawi, who the FBI says is also known as Saif Al-Aldel, is wanted in connection to the 1998 bombings of U.S. embassies in Tanzania and Kenya. Makkawi, the FBI says, is also suspected of being a high-ranking member of al-Qaida.
At this year's fishing contest on Lake Winnebago in Wisconsin, they weren't just fishing for sturgeon. People arriving to fish parked their cars too closely, and the ice gave way. No one was hurt but three dozen vehicles were pulled out of the lake.
Sherry Cousins and her brother Bruce Wallace of Hollister, Mo., sit in the wreckage of their secondhand store in Branson, Mo, on February 29. A powerful storm system that produced multiple reports of tornadoes lashed the Midwest early today, roughing up the country music resort city of Branson.
A line of severe storms moving across the Midwest left death and destruction in its wake early today.
The storms moved through Kansas and Missouri overnight, destroying one trailer park and leaving at least one dead in Buffalo, Mo.
The hardest hit area is Harrisburg, Ill., where authorities say at least six people have been killed after what is presumed to be a tornado raked the town before dawn. (Note: in situations such as this, details such as the number of people killed and injured change as more information comes in. We will be updating this post.)
Former Massachusetts Gov. Mitt Romney notched two big wins Tuesday, upping his Republican presidential delegate count and taking modest-plus momentum into the week leading up to Super Tuesday on March 6.
With the Michigan and Arizona primaries in the history books as Romney's fifth and sixth victories, we're looking ahead to Super Tuesday, when presidential contests will be held in 10 states and 413 delegates will be up for grabs.