Scientists have discovered a crucial mechanism behind one of sleep's most vital functions - cleaning toxins from the brain.

Novo Nordisk's U.S.-listed and domestic shares rose Wednesday after analysts from UBS upgraded the Danish drugmaker's stock ...

More and more people are using sleep medication, and it’s really important to know if that’s healthy sleep,” said lead study ...

Donald Trump says the U.S. needs control of Greenland and the Panama Canal "for national security." Here's why both places are so important.

Deep sleep may clear the brain of toxic waste via a process driven by norepinephrine, a molecule that creates rhythmic blood vessel contractions.

Greenland may become independent if its residents want, but is unlikely to become a U.S. state, Denmark's foreign minister ...

Trump Revives Greenland Debate U.S. President-elect Donald Trump has reignited global discussions about the political future ...

The norepinephrine molecule helps clear the brain of waste like dirty dishes in a dishwasher, and scientists think their ...

The brain is a very busy organ and as it works, it accumulates toxic proteins that can cause sticky plaques. These plaques have been linked to several neurological disorders, including Alzheimer’s, ...

Donald Trump Jr. arrived in Greenland as the president-elect seeks control of the territory from Denmark, whose King Frederik ...

U.S. President-elect Donald Trump says he wants to make Greenland a part of the United States and does not rule out using ...

U.S. President-elect Donald Trump says he wants to make Greenland a part of the United States and does not rule out using ...