New research shows that glioblastoma has an internal clock and syncs its daily rhythms to match -- and take advantage of -- the rhythms of its host. In this way, brain tumors grow in response to the ...

Plus, Swift is the chart's top act for the first ... with tequila, upon learning that the track had become his first Hot 100 ...

Research shows K-12 students in different states spend wildly different amounts of time in school, and suggests the nation's schools could be much better about using the learning time they do have.

Would you be okay if the sun rose before 4 a.m., or after 10? Not changing clocks is a popular idea, but we’d have to live ...

All animals including humans are subject to daily rhythms in their activity and sleep, hunger, metabolism, and reproduction.