Stevie Nicks and Lindsey Buckingham have again invigorated the Fleetwood Mac fandom.

In a shocking move, CBS is ending "The Late Show with Stephen Colbert" next year, potentially exiting the late-night television business altogether.

Doing more physical activities throughout the week is a known way to improve sleep, but new research shows you don't have to run a marathon or visit a gym to reap those benefits.