Catastrophic football head injuries are rare, but they may be more than three times as common in high school football players than college athletes, a new study shows.

Catastrophic head injuries, which include bleeding or swelling in the brain, can be fatal.

Even if football head injuries aren't severe, players with head injuries should stay out of the game, note the researchers, who included Barry Boden, MD, of The Orthopedic Centre in Rockville, Md.

"Coaches, athletes, parents, athletic trainers, and all medical personnel need to be educated to never allow an athlete to continue playing football with ongoing neurologic symptoms," write Boden and colleagues.

Coaches also "need too continue educating players to avoid hitting with the head," the researchers write in July's edition of The American Journal of Sports Medicine.

Football Head Injuries Studied

Boden's team reviewed 94 cases of severe head injuries sustained by high school football players and college football players between 1989 and 2002.

All but two of those cases occurred in high school athletes.

The cases, which were reported to the National Center for Catastrophic Sports Injury Research, included eight players who died from their head injuries and 46 athletes who suffered permanent paralysis, memory loss, seizures, or other permanent injuries.

The head injuries typically happened when the athlete's head hit another player's head, other body part, or the ground during a tackle. Head injuries were more common during games than during practices.

Based on the number of high school and college football players -- including the vast majority who don't get severe head injuries -- the researchers estimate that catastrophic head injuries are 3.28 times more common in high school football players than in college players.

Headline Quickies...Roll Tide, Idol news, Kelly & Who?

Randy Jackson is OUT!!!!  "YO DAWG WILL BE MISSED." Yep, Randy is out and Kanye may be in...they want Randy to be a mentor rather than Judge.

Bama is #1 after beating Michigan 41-14 (same score as LSU vs Texas State btw)  It's good to be a Bama fan, how great did our defense look?

Kirani James claimed Grenada's first medal in Olympic history Monday night, leaving the field behind in a drizzle to win the 400-meter gold by more than a half-second.

Photo Galleries from Tuscaloosa News!

Adults in the United States are just not getting enough physical activity, period. We are getting bigger and bigger - here's 5 tips that could help.

• Don't use elevators or escalators; instead, take the stairs. Start with one such substitution a day, and build up slowly. So you work on the 50th floor? Ride up to 48 and walk up from there. Careful, though -- walking down stairs can be hard on your knees. Walk up, but ride down.
• Stop circling parking lots and fighting for the closest spot. Park a little bit farther away from the office or mall, and walk. You'll not only increase fitness, you'll decrease stress.
• If you take the bus or subway, get off one or two stops early and walk the rest of the way.
• Vacuum more often, change the sheets more often, mop the floor more often. These get your heart pumping, which means they are excellent calorie burners.
• It's summertime! Get outside! Cut your grass, weedeat or spray around your house for bugs.

Danielle Murphree, (pictured in the middle) the 23-year-old nurse from Tuscaloosa, Ala. She tells Zap2it her strategy is stay under the radar at first.

"I'm going to lay low, I'm not going to get a target on my back the first couple weeks even though I am very competitive ... I'm going to not show all my cards or any of that until nine, 10 people are left and then I'm going to show my more strategic side," says Danielle.

She also says she's going to play a stand-up game and not lose her morals.

"I will definitely play as honorably as I can. I've got people back home, my job, my nieces watching me. I'm going to try to be as good of a person as I can on the show," says Danielle. "If I give somebody my word, I'm going to stick by it. Whether that comes back to bite me, if it's a bad decision, that's my own fault."

Danielle also tells us she's not going to fake a showmance. If she has a real connection with someone, then she's open to a romance, though. And she also does not plan to tell the houseguests she's a nurse. She's going to say she's a kindergarten teacher.
 
As far as what makes her unique from other or past contestants, Danielle says, "I don't know if it's that I'm too real, or too open. I'm very bubbly and energetic ... I'm very outgoing, I'll say what's on my mind."

"Big Brother 14" premieres Thursday, July 12 at 9 p.m. ET/PT on CBS. Don't forget - sign up for the live feeds while you can get a discount!