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A mouse's brain clears out toxins during periods of deep sleep — including toxins that form the sticky plaques associated with Alzheimer's disease. Could the same hold true for people?

Around age 50, people may begin to forget things. This can be scary. But there are clear differences between the onset of dementia and totally normal, age-related lapses in memory.

The First Folio is the first printed collection of all of Shakespeare's plays, assembled by two of his buddies after he died. Without it, plays like Macbeth and Twelfth Night might not have survived.

An audacious attack over the weekend by militants on an Indian air base near the border with Kashmir comes as India's prime minister launched a peace initiative.

Every child needs help from parents and teachers to develop his or her attention span, argues a researcher.

The paper switched delivery companies and subscribers started reporting missing papers. Before dawn on Sunday, dozens of reporters and editors fanned out and delivered the papers themselves.

Announcing the move Monday, Bahrain said it is responding to "sinful cowardly attacks" on Saudi Arabia's embassy and a consulate in Iran.

What will be the big stories of 2016? Four experts offer their best guesses. They worry about Zika virus and malaria. But not all their predictions are downers.

NPR TV critic Eric Deggans looks at some of the moments, from Trump to Brian Williams, that made a difference in media in the past year.

The "Love Me Like You Do" singer created her new album as an experiment — to see if she could make a "big pop album." Reviewer Ken Tucker says Goulding's experimental effort was worth the risk.