Aug. 22 (UPI) -- For people who've suffered strokes, getting exercise may be the key to regaining mobility. In a recent study, up to 80 percent of stroke patients benefited from high-intensity activities like fast walking and climbing.

Aug. 22 (UPI) -- The defense chiefs of the United States and Turkey have agreed on the first phase of a safe zone plan to root out terrorists in northern Syria.

Aug. 22 (UPI) -- Amid heightened tensions with the United States, Iran rolled out a new missile defense system Thursday it says was developed and built locally.

Aug. 22 (UPI) -- A dispute between U.S. President Donald Trump and Denmark, over the latter's refusal to sell Greenland, was softened some by a phone call from Secretary of State Mike Pompeo.

Aug. 22 (UPI) -- U.S. Figure Skating and the U.S. Center for SafeSport have permanently banned coach Richard Callaghan after an investigation into accusations he engaged in sexual misconduct with two teenage boys, officials said.

Aug. 22 (UPI) -- A week after dropping out of the Democratic presidential race, former Colorado Gov. John Hickenlooper has announced he will challenge for Republican Sen. Cory Gardner's seat.

SEOUL, Aug. 22 (UPI) -- Justice Minister nominee Cho Kuk on Thursday expressed his firm will not to succumb to growing demand by opposition parties to step down amid snowballing corruption allegations involving his daughter.

Aug. 22 (UPI) -- Police arrested a California man in possession of a cache of weapons, ammunition and tactical gear for threatening to commit a mass shooting at a hotel where he was employed as a cook.

Aug. 22 (UPI) -- Texas executed a man who maintained his innocence in the 1998 killing of a Houston college student, authorities said.

Aug. 21 (UPI) -- Sudan's new prime minister was sworn in Wednesday, ushering in a new phase for the African country.