Trouble falling asleep? Doctor shares mental 'card trick' that helps you fall asleep fast.
It's called "cognitive shuffling."

Counting sleep is a thing of the past.
If you’re having trouble catching those elusive zzz’s, you are not alone. Roughly 1 in 3 adults worldwide have insomnia, which we know can lead to a whole slew of things that negatively impact our health. Which is probably why social media is full of various hacks the promise a better night’s sleep.
Recently Denver-based board-certified dermatologist Dr. Scott Walter made a video touting the efficacy and benefits of “cognitive shuffling,” which he said was an “absolute game changer” for his own sleep schedule.
In the clip, Dr. Walter described cognitive shuffling as “a way to rearrange or reorganize your thoughts similar to shuffling a deck of cards — basically, distracting your mind from conscious thought patterns that may keep you awake.”
The “simple mental exercise” can be done in a number of ways.
“One is just thinking of random words or objects that have nothing to do with each other,” Walter said. “For example, cow, leaf, sandwich, butter, liver, things like that — just random words that make no sense.” Apparently there’s even an app out there called MySleepButton that will feed you random words to form a picture in your mind.
Alternatively, if you “don’t like random,” you could also pick a letter of the alphabet, and start counting your heartbeat. After every eight beats, you’ll think of a word that begins with that letter.
@denverskindoc Stitch w/ @sidneyraz say goodbye to the Sunday Scaries and fall asleep quickly with this doctor approved sleep hack! #sleephack #todayilearned #wishiknew #howtofallasleepfaster #cognitiveshuffling #cognitiveshuffle #sleephelp #doctor #medicine #sleep #sundayscaries #doctorhack #fallingasleep #anxiety ♬ original sound - Dr. Scott Walter | Derm
Walter went on to explain that cognitive shuffling is so effective because in addition to distracting your brain, it ““mimics what are called microdreams, which occur during the transition to sleep, [letting] your brain know, hey, it’s safe to fall asleep.”
Pasha Marlowe, MFT, who also improved her sleep routine with cognitive shuffling, posted her own TikTok claiming that it “interrupts the processes of memory, scheduling and problem solving.She also explained a slightly different process, saying you could take a word and think of as many words as you can that also begin with the same letters in your chosen word. Her example was the word “PUMPKIN,” and beings listing out “prince, pie, peanut butter, product,” and so on. Then she might go onto the letter “U” and start naming things that start with that letter…you get the idea. Multiple resources recommend following this particular strategy.
Luc Beaudoin, cognitive scientists and creator of MySleepButton, told The Guardian that the hack is superior to the traditional insomnia-busting tactics like counting sleep because the former are so “boring” that virtually any other thought, including worries, will be perceived by the brain as “more compelling.”
But with cognitive shuffling, there’s enough gameplay and “nonsense” involved to distract our hypervigilant cortex from perceiving potential threats just long enough for us to drift off.
Cognitive shuffling isn’t without its limitations. The MySleepButton site says that this method is not effective under the follow conditions:
- You are too tired to conjure up words, but not drowsy enough to fall asleep. (For example, when you wake up in the middle of the night.)
- You don’t like to think deliberately when you are trying to fall asleep.
- You find it difficult to come up with words that start with a given letter, despite practice.
- You find spelling tedious.
For these instances, the site says you can lay back while MySleepButton does the work for you. Or, you could try a few other proven hacks, found here and here.
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An Irish woman went to the doctor for a routine eye exam. She left with bright neon green eyes.
It's not easy seeing green.
Did she get superpowers?
Going to the eye doctor can be a hassle and a pain. It's not just the routine issues and inconveniences that come along when making a doctor appointment, but sometimes the various devices being used to check your eyes' health feel invasive and uncomfortable. But at least at the end of the appointment, most of us don't look like we're turning into The Incredible Hulk. That wasn't the case for one Irish woman.
Photographer Margerita B. Wargola was just going in for a routine eye exam at the hospital but ended up leaving with her eyes a shocking, bright neon green.
At the doctor's office, the nurse practitioner was prepping Wargola for a test with a machine that Wargola had experienced before. Before the test started, Wargola presumed the nurse had dropped some saline into her eyes, as they were feeling dry. After she blinked, everything went yellow.
Wargola and the nurse initially panicked. Neither knew what was going on as Wargola suddenly had yellow vision and radioactive-looking green eyes. After the initial shock, both realized the issue: the nurse forgot to ask Wargola to remove her contact lenses before putting contrast drops in her eyes for the exam. Wargola and the nurse quickly removed the lenses from her eyes and washed them thoroughly with saline. Fortunately, Wargola's eyes were unharmed. Unfortunately, her contacts were permanently stained and she didn't bring a spare pair.
- YouTube youtube.com
Since she has poor vision, Wargola was forced to drive herself home after the eye exam wearing the neon-green contact lenses that make her look like a member of the Green Lantern Corps. She couldn't help but laugh at her predicament and recorded a video explaining it all on social media. Since then, her video has sparked a couple Reddit threads and collected a bunch of comments on Instagram:
“But the REAL question is: do you now have X-Ray vision?”
“You can just say you're a superhero.”
“I would make a few stops on the way home just to freak some people out!”
“I would have lived it up! Grab a coffee, do grocery shopping, walk around a shopping center.”
“This one would pair well with that girl who ate something with turmeric with her invisalign on and walked around Paris smiling at people with seemingly BRIGHT YELLOW TEETH.”
“I would save those for fancy special occasions! WOW!”
“Every time I'd stop I'd turn slowly and stare at the person in the car next to me.”
“Keep them. Tell people what to do. They’ll do your bidding.”
In a follow-up Instagram video, Wargola showed her followers that she was safe at home with normal eyes, showing that the damaged contact lenses were so stained that they turned the saline solution in her contacts case into a bright Gatorade yellow. She wasn't mad at the nurse and, in fact, plans on keeping the lenses to wear on St. Patrick's Day or some other special occasion.
While no harm was done and a good laugh was had, it's still best for doctors, nurses, and patients alike to double-check and ask or tell if contact lenses are being worn before each eye test. If not, there might be more than ultra-green eyes to worry about.