MRI scans of two healthy, dementia-free people, each following either a Mediterranean diet or a Western diet, show very different results Source

Tom Hanks plays Fred Rogers in the highly anticipated new movie “A Beautiful Day in the Neighborhood.” The Academy Award-winning actor said he initially turned down the part, but director Marielle Heller changed his mind. Gayle King talks with him about how Heller convinced him to take on the role. Source

The video, which has not been released publicly, will be a key piece of evidence in Salvatore Anello’s criminal trial Source

Democratic presidential candidates are back on the campaign trail Thursday after a fiery debate. Ten candidates took the stage in Atlanta Wednesday night, including front runners, Joe Biden, Elizabeth Warren, Bernie Sanders and Pete Buttigieg. The latest CBS News battleground tracker poll has Buttigieg surging in Iowa, where caucuses are less than three months away. CBS News political contributors Robby Mook and Terry Sullivan join “CBS This Morning” to discuss the impact of the debate. Source

Doctors believe they may have discovered a new type of lung injury tied to vaping e-cigarettes. The significant finding is linked to a 17-year-old in Canada who nearly died after five months of vaping THC and flavored e-cigarettes. But his case does not follow the same pattern of lung injuries seen in more than 2,000 U.S. cases. Dr. Tara Narula reports. Source

Watch Part 1 of “CBS This Morning”: After Gordon Sondland’s bombshell testimony Wednesday, two more key witnesses will testify in the Trump impeachment inquiry Thursday. Also, the Democratic presidential candidates united on the impeachment inquiry, but sparred over who has the necessary qualifications for the White House. Source

Britain’s Prince Andrew stepped down from public duties on Wednesday, saying the controversy surrounding his association with convicted sex offender Jeffrey Epstein had caused major disruption to the royal family’s work. This follows his interview with the BBC in which he expressed little remorse over his relationship with Epstein or his alleged victims. A mounting list of organizations have cut ties with him. Imtiaz Tyab reports. Source

A look back at what we’ve been covering on “CBS This Morning.” Source

Doctors diagnosed a 17-year-old in Canada with “popcorn worker’s lung” when he nearly died after vaping THC and flavored e-cigarettes for five months Source

14 year old’s lawyer says he and student in photo in post are friends but youth was suspended from school despite an arranged apology Source