Sleep Paralysis Is the Most Terrifying State of Consciousness

It’s a condition meant to protect us, but when it goes wrong, it makes some experience a waking nightmare.


My first introduction to sleep paralysis was through Steven Yeun (aka Glenn on The Walking Dead). He described an incident where he was staying up late into the night, studying for a college exam:

“I went to sleep and while I was falling asleep I fell into sleep paralysis, and that would happen to me a lot,” he said in an interview with The Indoor Kids. “I started feeling a pushing on my chest, and I was like 'what is this?' So, I open my eyes ... I looked at my stomach and there was a woman's head.”

It would happen in moments when he was deprived of sleep and had a lot of anxiety, he said. Yeun had no scientific explanation for why his sleep paralysis would happen. However, researchers seem to think it's closely tied to REM sleep.

The paralysis mechanism has a practical use. It's in place so we don't act out our dreams. However, there are cases where that paralysis function fails and we do things in our sleep we don't remember.

Shelby Harris explains why we feel so terrified when we experience sleep paralysis.

3D printing might save your life one day. It's transforming medicine and health care.

What can 3D printing do for medicine? The "sky is the limit," says Northwell Health researcher Dr. Todd Goldstein.

Northwell Health
Sponsored by Northwell Health
  • Medical professionals are currently using 3D printers to create prosthetics and patient-specific organ models that doctors can use to prepare for surgery.
  • Eventually, scientists hope to print patient-specific organs that can be transplanted safely into the human body.
  • Northwell Health, New York State's largest health care provider, is pioneering 3D printing in medicine in three key ways.
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Active ingredient in Roundup found in 95% of studied beers and wines

The controversial herbicide is everywhere, apparently.

(MsMaria/Shutterstock)
Surprising Science
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Robot pizza delivery coming later this year from Domino's

The pizza giant Domino's partners with a Silicon Valley startup to start delivering pizza by robots.

Nuro
Technology & Innovation
  • Domino's partnered with the Silicon Valley startup Nuro to have robot cars deliver pizza.
  • The trial run will begin in Houston later this year.
  • The robots will be half a regular car and will need to be unlocked by a PIN code.

Would you have to tip robots? You might be answering that question sooner than you think as Domino's is about to start using robots for delivering pizza. Later this year a fleet of self-driving robotic vehicles will be spreading the joy of pizza throughout the Houston area for the famous pizza manufacturer, using delivery cars made by the Silicon Valley startup Nuro.

The startup, founded by Google veterans, raised $940 million in February and has already been delivering groceries for Kroger around Houston. Partnering with the pizza juggernaut Domino's, which delivers close to 3 million pizzas a day, is another logical step for the expanding drone car business.

Kevin Vasconi of Domino's explained in a press release that they see these specially-designed robots as "a valuable partner in our autonomous vehicle journey," adding "The opportunity to bring our customers the choice of an unmanned delivery experience, and our operators an additional delivery solution during a busy store rush, is an important part of our autonomous vehicle testing."

How will they work exactly? Nuro explained in its own press release that this "opportunity to use Nuro's autonomous delivery" will be available for some of the customers who order online. Once they opt in, they'll be able to track the car via an app. When the vehicle gets to them, the customers will use a special PIN code to unlock the pizza compartment.

Nuro and its competitors Udelv and Robomart have been focusing specifically on developing such "last-mile product delivery" machines, reports Arstechnica. Their specially-made R1 vehicle is about half the size of a regular passenger car and doesn't offer any room for a driver. This makes it safer and lighter too, with less potential to cause harm in case of an accident. It also sticks to a fairly low speed of under 25 miles an hour and slams on the breaks at the first sign of trouble.

What also helps such robot cars is "geofencing" technology which confines them to a limited area surrounding the store.

For now, the cars are still tracked around the neighborhoods by human-driven vehicles, with monitors to make sure nothing goes haywire. But these "chase cars" should be phased out eventually, an important milestone in the evolution of your robot pizza drivers.

Check out how Nuro's vehicles work: