From violence to verbal taunts, abusive dating behavior is pervasive among America's adolescents, according to a new, federally funded survey.
Drugmakers are racing to develop vaccines and drugs to address the worst outbreak of Ebola in history.
Starting Monday, millions of people who have avoided colon cancer screening can get a new home test that's noninvasive and doesn't require the icky preparation most other methods do.
Remains found nearly a week ago in a rural area of Virginia are those of a missing university student.
Iran hanged a woman on Saturday who was convicted of murdering a man she alleged was trying to rape her, drawing swift international condemnation for a prosecution several countries described as flawed.
New allegations have emerged that Islamic State extremists have expanded their arsenal with chlorine bombs and captured fighter jets -- weapons that could help the militants in Iraq and Syria.
Sixty-five percent of Americans now say the threat from the Islamic State group is very or even extremely important.
A brazen daylight hatchet attack against a group of police officers on a busy New York street was a terrorist act by a reclusive Muslim convert.
Transportation officials are reviewing the "safety culture" of the federal agency that oversees auto recalls.
The World Health Organization says millions of doses of two experimental Ebola vaccines could be ready for use in 2015.
A nurse who caught Ebola while caring for a Dallas patient who died of the disease walked out of a Washington-area hospital virus-free Friday and into open arms.
Pesky. Illegal. Effective? Lawn signs touting local and statewide candidates are in full bloom along highways, street corners and other public spaces.
Two U.S. senators are calling on regulators to issue a nationwide recall of cars with faulty air bags made by Takata Corp.
Republicans trying to take back control of the U.S. Senate are working hard to sear one big number into the brains of voters from Alaska to Arkansas: 90 percent. Or 95 percent. Or 97 percent.
The standing ovation began even before Sergeant-at-Arms Kevin Vickers entered the Parliament chamber.
U.S.-led coalition airstrikes in Syria have killed more than 500 people since they began last month.
Missouri police have been brushing up on constitutional rights and stocking up on riot gear to prepare for a grand jury's decision about whether to charge a white police officer who fatally shot a black 18-year-old in suburban St. Louis.
After an American was released from North Korean custody, the attention has now focused on two other U.S. citizens still in its jails.
A doctor who became New York City's first Ebola patient was praised for getting treatment immediately upon showing symptoms.