Live nowOn the air 24/7Watch live
Play

U.S.BONK-O-METER

Study links body clock disruption to one in four depression cases

Outside experts say more research is needed before circadian depression can count as a subtype; the study's claim stays a possibility, not a diagnosis.

▶ As it aired · U.S.

Watch it as it aired: Hank Ledger and Dale Bearman on this story, from The Bonk-o-Meter at 5:25 PM ET. Cartoon anchors, real headline: the facts are Smithsonian Magazine's, the jokes are ours.

At a glance

The real story

The reporting behind this segment. The headlines belong to the outlets; read the original before you believe or share anything.

What BBN said about it

  1. Hank Ledger · Lead AnchorThe claim under review: one in four cases of depression could be caused by a body clock that's out of sync.

  2. Dale Bearman · Chief Skeptic & ContributorCould. I see the word could, Hank, and I'm choosing to ignore it.

  3. Hank Ledger · Lead AnchorSmithsonian Magazine reports a study suggests a disrupted body clock may sit behind a sizable share of depression cases. They call it circadian depression.

  4. Dale Bearman · Chief Skeptic & ContributorSo the thing that wakes me at four in the morning has a name, and that name rhymes with my own sleep schedule, which is to say it's a mess.

  5. Hank Ledger · Lead AnchorThat's the evidence for. The catch is that outside experts say more research is needed before circadian depression can be classified as a subtype.

  6. Dale Bearman · Chief Skeptic & ContributorMore research. The most frightening phrase in science, because it means nobody knows.

  7. Hank Ledger · Lead AnchorIt means they're being careful.

  8. Dale Bearman · Chief Skeptic & ContributorSame thing. Right, the ceremony. I've brought a gong, and it's been going off since four.

  9. Hank Ledger · Lead AnchorThe rating is Mildly Bonkers: a real study, a real possibility, and a subtype that doesn't officially exist yet.

  10. Dale Bearman · Chief Skeptic & ContributorMildly bonkers, then. But I'd like it noted I've been awake since four, and I'm fine.

▶ Watch BBN liveMore U.S. →

More Shorts

All videos →
  1. Photo: Alexis Lours · CC BY 4.0 · Wikimedia Commons · altered by BBN
    ▶ As it aired · U.S.Crows may make lightning-fast decisions, study hintsRead the story
  2. ▶ As it aired · U.S.At least 16 dead in 7.0 Tibet earthquakeRead the story
  3. ▶ Interviews · U.S.PHP Flaws Take Sites Offline: Author Who Never Updates SquirmsAbout this segment
  4. Photo: Anthony Quintano from Hillsborough, NJ, United States · CC BY 2.0 · Wikimedia Commons · altered by BBN
    ▶ As it aired · U.S.NYC Council bans horse carriages in veto-proof voteRead the story
  5. Photo: Jarek Tuszyński · CC BY-SA 3.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 3.0
    ▶ As it aired · U.S.Supreme Court Justice Kagan warns some conservative rulings have…Read the story
  6. ▶ Hot Take or Not · U.S.Data Centers vs. Water: The Cloud Calls It a PotluckAbout this segment
  7. Photo: Robert Hsiao · CC BY-SA 4.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 4.0
    ▶ As it aired · U.S.911 systems across California suddenly shut downRead the story
  8. Photo: U.S. Department of Health and Human Services · Public domain · Wikimedia Commons · altered by BBN
    ▶ As it aired · U.S.Top RFK Jr. adviser quits; workers shoulder health costsRead the story
  9. ▶ Interviews · U.S.Mega Coffee's Expansion Rush, Explained by an Abundance CoachAbout this segment
  10. Photo: Rklear · CC BY-SA 3.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 3.0
    ▶ As it aired · U.S.Virginia Senate leader arrested on corruption chargesRead the story
Aired onThe Bonk-o-MeterWe check the claim. The meter decides.About the show →

From the archive: everything BBN aired on Thursday, October 22, 2026 · the U.S. archive · all months