U.S. & World

The day's top national and international news.
What is brain fog?
0:00
0:00 / 3:45
Health

What is brain fog?

Doctor explains what you need to know about what is informally referred to as “brain fog.”

More U.S. & World Videos

Slide 1 of 9
What is brain fog?
play videoplay video3:45
Now Playing

What is brain fog?

Single mom sobs after landing dream job thanks to Pennsylvania Women Work
play videoplay video9:55

Single mom sobs after landing dream job thanks to Pennsylvania Women Work

Family receives emotional surprise after daughter's cancer battle
play videoplay video10:28

Family receives emotional surprise after daughter's cancer battle

Viral therapy dogs jump into action after tragic D.C. plane crash
play videoplay video3:48

Viral therapy dogs jump into action after tragic D.C. plane crash

‘There was a collision': Air traffic control recording captures moment of crash
play videoplay video0:28

‘There was a collision': Air traffic control recording captures moment of crash

Witness describes seeing plane in moments before it crashed
play videoplay video3:30

Witness describes seeing plane in moments before it crashed

Video shows moment plane and helicopter collided near DCA
play videoplay video0:38

Video shows moment plane and helicopter collided near DCA

Ex-Abercrombie CEO arrested on sex trafficking-related charges
play videoplay video0:37

Ex-Abercrombie CEO arrested on sex trafficking-related charges

Selena Gomez and Benny Blanco's sweetest moments
play videoplay video9:07

Selena Gomez and Benny Blanco's sweetest moments

Latest

Catholic leaders reflect on Pope Francis's historic visit to DC
play videoplay video3:04

Catholic leaders reflect on Pope Francis's historic visit to DC

Maryland police solve large mail theft investigation
play videoplay video2:19

Maryland police solve large mail theft investigation

Family still searching for answers 25 years after man's murder
play videoplay video2:07

Family still searching for answers 25 years after man's murder

Family still searching for answers 25 years after man's murder: The News4 Rundown
play videoplay video24:13

Family still searching for answers 25 years after man's murder: The News4 Rundown

DC murder set for trial dismissed over DNA evidence
play videoplay video4:01

DC murder set for trial dismissed over DNA evidence

Purcellville vice mayor faces criminal investigation
play videoplay video2:25

Purcellville vice mayor faces criminal investigation

Pope Francis remembered for interfaith dialogue
play videoplay video2:25

Pope Francis remembered for interfaith dialogue

Earth Day quiz: Which foods are better for the environment
play videoplay video3:18

Earth Day quiz: Which foods are better for the environment

Library of Congress exhibit tells the tale of the two Georges
play videoplay video2:33

Library of Congress exhibit tells the tale of the two Georges

Driver accused of killing 2 kids pleads to lesser charges, faces 4 months
play videoplay video2:26

Driver accused of killing 2 kids pleads to lesser charges, faces 4 months

Fire tears through Anacostia rowhouses, displaces 12 people
play videoplay video2:40

Fire tears through Anacostia rowhouses, displaces 12 people

Kristi Noem purse theft suspect was caught on camera – but you won't see him yet
play videoplay video1:05

Kristi Noem purse theft suspect was caught on camera – but you won't see him yet

Dashboard
Newsletters Local Northern Virginia Prince George's County Federal Worker Resources Subscribe to The 4Front Cherry Blossoms in DC Storm Team4 Changing Climate See It, Share It Videos Investigations Consumer Money-Saving Tips Scam Alerts Recalls Submit a tip The Scene Subscribe to The Weekend Scene Sports
About NBC4 Washington Our news standards TV Schedule Our apps NBC4 TV Schedule Submit photos and video Submit a consumer complaint Take our daily flash survey Promotions Newsletters Cozi TV
Contact Us