THURSDAY, Jan. 14 (HealthDay News) -- U.S. hospital emergency departments treated 3.5 million motor vehicle crash victims who had injuries ranging from bruises and scrapes to life-threatening trauma in 2006, a new government study finds.

THURSDAY, Jan. 14 (HealthDay News) -- The U.S. Food and Drug Administration on Thursday said it found no good evidence that the Spiriva HandiHaler boosts heart risks in patients who use it to help control chronic obstructive pulmonary disease (COPD).

THURSDAY, Jan. 14 (HealthDay News) -- An agreement in principle on the landmark overhaul to the U.S. health care system could come as early as Friday, lawmakers said Thursday.

THURSDAY, Jan. 14 (HealthDay News) -- Cancer researchers rely on specific tumor cell lines when developing new treatments, but those samples aren't always what they're advertised to be, a Dutch team reports.

THURSDAY, Jan. 14 (HealthDay News) -- About 25 percent of healthy people have abnormalities in the kidneys and their blood vessels, but most of these abnormalities aren't serious enough to prevent a person from donating a kidney, a new study shows.

THURSDAY, Jan. 14 (HealthDay News) -- As many as 6 percent of Oregon eighth-graders have tried the potentially lethal "choking game," public health officials warn in a new report.

THURSDAY, Jan. 14 (HealthDay News) -- The stress of caring for a disabled spouse increases the risk of stroke substantially, and the increased risk is greater for husbands than for wives, a new study finds.

THURSDAY, Jan. 14 (HealthDay News) -- As devastating as the immediate aftermath of Tuesday's 7.0-magnitude earthquake in Haiti has been, potentially worse public health calamities could lie ahead in the weeks and months to come, health experts say.

THURSDAY, Jan. 14 (HealthDay News) -- Strains of drug-resistant HIV that will emerge in San Francisco within the next five years could pose a serious threat to efforts to control the HIV pandemic, according to U.S. researchers.

THURSDAY, Jan. 14 (HealthDay News) -- Paramedics often work quickly to stabilize the spines of trauma patients, to avoid a broken neck or other problems, but new research suggests that practice could double the likelihood that gunshot and stabbing victims will die if they aren't taken immediately to a trauma center instead.

(HealthDay News) -- Here are the latest clinical trials, courtesy of ClinicalConnection.com:

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

THURSDAY, Jan. 14 (HealthDay News) -- A new national survey finds that almost 27 percent of girls aged 12 to 17 were involved in serious fights or attacks on other girls within the previous year.

THURSDAY, Jan. 14 (HealthDay News) -- Since the PCV7 early childhood vaccine for bacterial pneumonia was introduced in the United States in 2000, the number of children hospitalized for pneumonia because of pneumococcus has decreased by 50 percent and bacterial pneumonias have decreased overall, new research shows.

THURSDAY, Jan. 14 (HealthDay News) -- Using mail-order pharmacies makes it easier for people to stick with their doctor's prescribed medication regimens, a new study suggests.

(HealthDay News) -- Your body needs the mineral magnesium to properly contract and relax muscles, to produce proteins and to help enzymes function, the U.S. National Library of Medicine says.

(HealthDay News) -- Some new parents have a tough time figuring out when their crying baby is truly hungry.

THURSDAY, Jan. 14 (HealthDay News) -- One of the largest analyses of the effect of statin drug therapy on the risk of stroke confirms the benefits of these widely used drugs.