This is the first-ever scientific study to prove that odor produced during epileptic seizures can be smelled by dogs.

Dogs’ miraculous sense of smell allows them to do many things that no human technology can achieve, such as sniffing out drugs, explosives, and even diseases like cancer. Dogs are trained to respond to and even sense epileptic seizures before they occur—though effectiveness varies widely, and there’s been little solid scientific evidence that such a thing is possible. Further, it hasn’t been understood how dogs might be capable of such a feat. Could it be subtle alterations in behavior, movement, or some odorous giveaway?

A new small study suggests that humans emit a specific odor during epileptic seizures that some dogs can recognize.

In a paper published Thursday in the journal Scientific Reports, researchers took sweat samples from seven patients with

DON'T MISS THE REST OF THIS STORY!
Create a free account to continue and get unlimited access to hundreds of Nat Geo articles, plus newsletters.

Create your free account to continue reading

No credit card required. Unlimited access to free content.
Or get a Premium Subscription to access the best of Nat Geo - just $19
SUBSCRIBE

Read This Next

'World’s worst shipwreck' was bloodier than we thought
World’s first ultrasounds of wild manta rays reveal a troubling truth
Titanic was found during secret Cold War Navy mission

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet