Whenever we sleep in unfamiliar surroundings, only half your brain is getting a good night’s rest while the other half stands guard.

Half Your Brain Stands Guard When Sleeping In A New Place

When you sleep in unfamiliar surroundings, only half your brain is getting a good night’s rest.

“The left side seems to be more awake than the right side,” says Yuka Sasaki, an associate professor of cognitive, linguistic and psychological sciences at Brown University.

The finding, reported Thursday in the journal Current Biology, helps explain why people tend to feel tired after sleeping in a new place. And it suggests people have something in common with birds and sea mammals, which frequently put half their brain to sleep while the other half remains on guard.

Sleep researchers discovered the “first-night effect” decades ago, when they began studying people in sleep labs. The first night in a lab, a person’s sleep is usually … Continue Reading (3 minute read)

5 thoughts on “Whenever we sleep in unfamiliar surroundings, only half your brain is getting a good night’s rest while the other half stands guard.”

  1. Mammoth-Marketing

    I think my guard half doesn’t trust my sleeping half because I never get a good night’s rest.

  2. TheDancing4Skin

    Ooh that explains why I sleep so good after I’ve returned home back to my original bedroom

  3. feral_philosopher

    Oh, it’s not just me? Amazing. I can hear every single door close, AC unit turn on, toilet flush and elevator door open all night long in every hotel I’ve ever had to sleep in.

  4. cosmoboy

    I hate hotels. This may be why.

  5. average_meme_thief

    What if I’m the opposite way? I’ve always loved sleeping in hotels and some of the best nights sleep I can remember getting were in strange places. Some examples would be all the times I’ve slept outdoors in the middle of nowhere, and especially the times I slept in my cousins creepy ass basement (also out if all the places I’ve slept I’d estimate this was the most likely to be haunted by far).

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