History's Greatest Mysteries backdrop

History's Greatest Mysteries S4E18 — The Mysterious Havana Syndrome

6.5

History's Greatest Mysteries•Season 4•Episode 18

The Mysterious Havana Syndrome

6.5/10 · 66 votesJun 10, 202341 min

Ranked #24 of 25 in Season 4•−0.5 vs season avg

In 2016 a mysterious illness strikes dozens of government officials in Cuba. Over the next few years, hundreds more are afflicted. But investigations raise more questions than answers about this bizarre epidemic. What is the true cause of the strange phenomenon known as "Havana Syndrome?"

Previous episodeE17 · The Search for El Dorado Next episodeE19 · Unlocking the Secrets of the Nazca Lines

Seasons7

All 1 2 3 4 5 6 7

Season 4 Episodes25

The Loch Ness Monster still

The Loch Ness Monster

Who is the Zodiac Killer? still

Who is the Zodiac Killer?

The Assassination of JFK still

The Assassination of JFK

The Lost Colony of Roanoke still

The Lost Colony of Roanoke

The Phoenix Lights Phenomenon still

The Phoenix Lights Phenomenon

The Ark of the Covenant still

The Ark of the Covenant

The "Missingest" Man in America still

The "Missingest" Man in America

Blackbeard's Lost Treasure still

Blackbeard's Lost Treasure

Decoding the Mysterious Antikythera Mechanism still

Decoding the Mysterious Antikythera Mechanism

The Puzzling Pyramids of Egypt still

The Puzzling Pyramids of Egypt

The Hunt for Stolen Nazi Treasure still

The Hunt for Stolen Nazi Treasure

The Deadly Bermuda Triangle still

The Deadly Bermuda Triangle

The Search for Noah's Ark still

The Search for Noah's Ark

Who is D.B. Cooper? still

Who is D.B. Cooper?

The Legend of Bigfoot still

The Legend of Bigfoot

Unlocking the Secrets of Stonehenge still

Unlocking the Secrets of Stonehenge

The Search for El Dorado still

The Search for El Dorado

The Mysterious Havana Syndrome still

E18 6.5Now viewing

The Mysterious Havana Syndrome

Unlocking the Secrets of the Nazca Lines still

Unlocking the Secrets of the Nazca Lines

The Hunt for Cleopatra's Missing Tomb still

The Hunt for Cleopatra's Missing Tomb

TWA Flight 800 still

TWA Flight 800

The Hunt for Hitler still

The Hunt for Hitler

The Lost Gold of WWII still

The Lost Gold of WWII

The Black Dahlia still

The Black Dahlia

Gardner Museum Robbery still

Gardner Museum Robbery

Cast1

Laurence Fishburne

Laurence Fishburne

Self - Host

Discussion

0 comments

Join the conversation

Share your take and reply to other fans.

No comments yet

Be the first to share your thoughts on this episode.

Episode Summary

"The Mysterious Havana Syndrome" is episode 18 of History's Greatest Mysteries season 4. It scored 6.5/10 from 66 votes, ranking #24 of 25 episodes this season (season average 7.0). It aired on June 10, 2023.

Next: E19 · Unlocking the Secrets of the Nazca Lines Best of Season 4