Researchers say sleeping on the job can be a good thing; a mid-afternoon nap has been found to improve performance, cognition and memory Source

Dr. Jon LaPook with the latest on the virus’ spread in the U.S., and what precautions you should take to avoid infecting yourself and others Source

Harris said in a statement that Biden “reflects the decency and dignity of the American people and who can ultimately defeat Donald Trump.” Source

The book “Picture: Muhammad Ali,” featuring rare photographs of the boxing legend taken by staff photographers of the Louisville Courier-Journal, covers the entire length of “The Greatest”‘s career Source

On this “Face the Nation” broadcast, we sat down with Surgeon General Jerome Adams, Senator Chris Murphy and Washington Governor Jay Inslee Source

A rare look inside a murder case where virtually everything from the first moments of the investigation through the verdict are captured on camera. “48 Hours” correspondent Richard Schlesinger reports. Source

“It’s a big issue that goes way beyond science education,” one educator says. Source

Devon Gilfillian was 14 when he began playing guitar and his father, a popular wedding singer, taught him how to sing. His later influences include Otis Redding, Stevie Wonder and Jimi Hendrix. After releasing his debut album, “Black Hole Rainbow,” Gilfillian is making his national television debut on “CBS This Morning: Saturday.” He performs “The Good Life” for Saturday Sessions. Source

A father goes hunting in a Florida lake and vanishes. Many thought he was eaten by alligators, but not his mother. Seventeen years later, stunning courtroom revelations: it was murder. “48 Hours” correspondent Richard Schlesinger reports. Source

U.S. coronavirus fatalities rise to 17; Meghan Markle appears at International Women’s Day event in Britain Source