Skip to main content
Donate

Up Next

What to expect during the California primary

What to expect during the California primary

Video
3:00
Drug tests present major hurdle for employers

Drug tests present major hurdle for employers

Video
3:37
Drug tests present major hurdle for employers

Drug tests present major hurdle for employers

Video
3:37
Using poetry to shed light on the worst of memories

Using poetry to shed light on the worst of memories

Video
5:43
Hulk Hogan, media ethics and the battling Internet moguls

Hulk Hogan, media ethics and the battling Internet moguls

Video
5:57
The high art of political stagecraft in the age of optics

The high art of political stagecraft in the age of optics

Video
7:26
The growing economic power of Latino-Americans

The growing economic power of Latino-Americans

Video
7:26
Will Libertarian ticket impact the 2016 presidential race?

Will Libertarian ticket impact the 2016 presidential race?

Video
9:35
Vermont voters to decide on historic school merger plan

Vermont voters to decide on historic school merger plan

Video
6:38
Obama to highlight economic progress in NewsHour town hall

Obama to highlight economic progress in NewsHour town hall

Video
3:23
News Wrap: Terror fears stoke new warning for U.S. travelers

News Wrap: Terror fears stoke new warning for U.S. travelers

Video
3:04
Trump attacks media for questioning his donations to vets

Trump attacks media for questioning his donations to vets

Video
3:03
Back to Show
PBS News Hour

Alzheimer’s could be caused by past infections

More than five million Americans live with Alzheimer’s, a degenerative brain disease, and it is also the fifth leading cause of death for people over 65 years old in the U.S. A new study suggests it may stem from the brain’s past attempts to fight off infections. Rob Moir, one of the study’s authors, joins Lisa Desjardins to discuss.
Support Provided By
October 22, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 295
October 22, 2025 - PBS News Hour full episode
October 22, 2025 - PBS News Hour full episode
October 21, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 294
October 21, 2025 - PBS News Hour full episode
October 21, 2025 - PBS News Hour full episode
October 20, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 293
October 20, 2025 - PBS News Hour full episode
October 20, 2025 - PBS News Hour full episode
October 19, 2025 - PBS News Weekend full episode
26:44
Season 2025 Episode 292
October 19, 2025 - PBS News Weekend full episode
October 19, 2025 - PBS News Weekend full episode
October 18, 2025 - PBS News Weekend full episode
26:44
Season 2025 Episode 291
October 18, 2025 - PBS News Weekend full episode
October 18, 2025 - PBS News Weekend full episode
October 17, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 290
October 17, 2025 - PBS News Hour full episode
October 17, 2025 - PBS News Hour full episode
October 16, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 289
October 16, 2025 - PBS News Hour full episode
October 16, 2025 - PBS News Hour full episode
October 15, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 288
October 15, 2025 - PBS News Hour full episode
October 15, 2025 - PBS News Hour full episode
October 14, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 287
October 14, 2025 - PBS News Hour full episode
October 14, 2025 - PBS News Hour full episode
October 13, 2025 - PBS News Hour full episode
57:46
Season 2025 Episode 286
October 13, 2025 - PBS News Hour full episode
October 13, 2025 - PBS News Hour full episode
October 12, 2025 - PBS News Weekend full episode
26:45
Season 2025 Episode 285
October 12, 2025 - PBS News Weekend full episode
October 12, 2025 - PBS News Weekend full episode
October 11, 2025 - PBS News Weekend full episode
26:45
Season 2025 Episode 284
October 11, 2025 - PBS News Weekend full episode
October 11, 2025 - PBS News Weekend full episode
Show more
Active loading indicator