Vladimir Putin's popularity soared after the Winter Olympics and the annexation of Crimea. But his year is ending on a bitter note, with Russia in a deep recession and isolated internationally.
Using an E-Reader before trying to nod off may disrupt sleep more than reading a paper book, a study suggests. Scientists suspect the screen's blue light is messing with a sleep-inducing hormone.
The U.S. economic embargo on Cuba is still solidly in place. But the president's executive action opening relations with the island has set off a frenzy of speculation about a new era of U.S.-Cuba commerce.
The U.S. military set up a bank to collect brain tissue samples to better understand battlefield brain injury. But a law that prevents tissue donations from U.S. troops has severely hampered efforts.
Liz Sly of The Washington Post speaks with Audie Cornish about how the so-called Islamic State's attempt to govern and administer services like a state is breaking down, with food and power shortages.
The software used in the Sony data breach is available on the underground market. This makes it easier for criminals to execute an attack but harder to identify the perpetrators.
A San Francisco man talks about why he volunteers to deliver groceries to his elderly and disabled neighbors.
The Affordable Care Act created insurance subsidies that are under legal challenge. The Supreme Court will hear arguments in 2015 and could rule against a key provision of the law.
Authorities in the Colorado city have dispersed information brochures on the do's and don'ts of marijuana use. It lists facts such as where pot is legal and how long the high takes to set in.
In 2014, Uber became one of the most valuable privately held companies on earth. It expanded to more than 200 cities, but criticism and legal battles have ballooned in parallel with its revenues.