Researchers at Harvard tested adults older than 72 and reported a reduction by 55 percent; they said those having a daily ...

Nashville police are investigating a privately operated juvenile detention center where four teens, including two accused of murder, were able to escape through the front door, police said Monday.

A deputy vehicle hit a grandmother then pulled away as she protested at the rally for an unarmed black man killed by Sacramento police.

The 8-year-old was taken from her mother in an incident caught on a neighbor's doorbell camera in Texas. ABC News' Janai Norman reports.

There is a growing threat from wildfires, with dozens burning in the West. Fire crews are straining to put out the flames before conditions get worse.

Ahead of President Trump's high-stakes summit with Russian President Vladimir Putin, Vice President JD Vance met with Ukrainian and European officials in Kent, England.

A radio navigator on a B-17 bomber and a ground crew armorer, who both served in Italy, reconnected after they were discovered to be living about 15 minutes away from each other.

The Lions safety, Morice Norris, was taken off the field after a hit to the head. The other players, visibly shaken, gathered in prayer and the teams ran out the clock instead of resuming play.

Bystanders ran for safety as gunshots rang out at about 1:30 a.m. Saturday. Three people were shot in an incident that police say started with a fight between two teenagers.

Mexican President Claudia Sheinbaum is adamant the U.S. will not use military force in Mexico in its crackdown on drug cartels.

ABC News' Alex Stone provides an update on the progress firefighters are making on containing the Canyon Fire in Ventura County, California.

Mexican President Claudia Sheinbaum says she is opposed to the U.S. military conducting operations in her country targeting drug cartels.