U.S. & World 0:00Play0:00 / 3:45MuteShareToggle FullscreenHealthDecember 12, 2024 5:07 pmWhat is brain fog?Doctor explains what you need to know about what is informally referred to as “brain fog.” BOOKMARKERMore U.S. & World VideosSlide 1 of 93:45Now PlayingWhat is brain fog?9:55Single mom sobs after landing dream job thanks to Pennsylvania Women Work10:28Family receives emotional surprise after daughter's cancer battle3:48Viral therapy dogs jump into action after tragic D.C. plane crash0:28‘There was a collision': Air traffic control recording captures moment of crash3:30Witness describes seeing plane in moments before it crashed0:38Video shows moment plane and helicopter collided near DCA0:37Ex-Abercrombie CEO arrested on sex trafficking-related charges9:07Selena Gomez and Benny Blanco's sweetest momentsNewsLive TVSearchSearch Videos:US & World VideosEntertainment VideosHub TodayLatest1:33New York Yankees star Brett Gardner's son Miller passes away at 141:49Jason Momoa is a ‘fan' of scrunchies and says he doesn't ‘have a TV at home'1:39Why Tyler Perry doesn't watch his past movie performances8:32Ellen Pompeo talks first new role in 20 years In ‘A Good American Family'4:26New Season, New Pasta with Maria Sansone4:09Helping never tasted so good!3:07Supporting students one donation at a time2:34Moving to the beat with Celebrity Series of Boston3:28The perfect stretches to warm up your workout2:17Up-close look at rapidly melting glaciers from Alaska to Antarctica1:34Shonda Rhimes reacts to ‘Grey's Anatomy' ‘pick me' TikToks8:12‘Snow White' star Rachel Zegler reveals sweet reason she relates to DumboShow More