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Pop Culture

Optical illusion featuring creepy eye and color-changing tropical island is a total mind trip

Oh, how the eye plays tricks on us.

Reddit

Haven't had a classic creepy optical illusion in a while.

Optical illusions are always a fun way to learn about how our brains perceive the world—and how easily our eyes can be tricked.

One viral illusion going around, titled “This is black magic,” also happens to be giving perfect Summerween vibes—featuring a single solitary eye staring back at you and a very creepy narrated voice.

As you’ll see below, you, the viewer, are instructed to keep your gaze fixed on the eye in the center of the screen, in front of a tropical beach background with a “yellow sky and red sea.” Then…well…why don't you see for yourself first:

this is black magic
byu/SnooMemesjellies2323 inopticalillusions

As the voiceover explains, the color of the sky changes to have more “vibrant blues and greens.” Only, there were no blues and greens at all, when you go back and watch the video without staring at the eye, you see that the second image was actually black and white. DUN DUN DUN!!!!

As one viewer noted, "Watching it a second time and expecting the shift, it was even cooler. It swapped and I saw it in color, then saw the color fade to black and white.”

A few others couldn’t help but comment on the, ahem, interesting tone of the illusion overall.

"Why was the voice so creepy? I was anticipating a jump scare 😭," one person wrote.

So…is it really black magic? Obviously no. In fact, another viewer breaks down the science pretty darn well:

“Tldr: first image depletes chemical signals in your eye, so you see the exact opposite colors on the second image.

Your eye uses photoreceptors to create an image for the brain, by converting the light that lands on your retina (back of the eye) into chemical signals to represent color and bright/dark.

 optical illusion, reddit, color perception, color theory, color science, science, cool science A simple visual breakdown of eye anatomy.Photo credit: Canva

When you stare at an image without moving your eyes, that image becomes kind of ‘burned in’ temporarily to your retina, because the chemicals to send that specific image get depleted in the exact pattern of that image. In this example, the orange in the sky and water depletes whatever chemicals your photoreceptors use to send that orange to your brain wherever orange is in the image.

Then when you change to a black and white image, your photoreceptors only have the exact opposite chemicals left from what they need, so for a short time you'll see the exact opposite color of the primer image. In this example, the dark oranges turn to light tropical water blue and the light oranges turn to deep dark sky blue. Another easy way to see this is the clouds turn from black in the first image to white in the second.

An over simplified example would be like an ice cream machine that gives you either chocolate or vanilla. If everyone gets chocolate for a while, then after that you can only get vanilla until someone replenishes the chocolate."

Great explanation, but it was the ice cream metaphor that really resonated, amirite?

  - YouTube  www.youtube.com  

Bottom line: while there might not be any black magic used to create this video, it’s certainly a cool reminder of how magical our brains are.

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Family

8 secret habits that help grandparents build unbreakable bonds with grandchildren

Simple, everyday actions any grandparents can adopt.

Photo credit: Canva

There's something important happening in these tight-knit grandparent-grandchild moments.

You know that moment when a three-year-old runs full-speed into their grandpa’s arms like they haven’t seen him in years, even though it’s only been three days? Or when a sulky teenager who won’t even grunt “hello” to their parents suddenly lights up and starts chatting animatedly with grandma about the latest drama at school?

There’s something happening in these tight-knit moments that goes way deeper than many realize, and scientists have finally figured out what it is.

 grandparents, granchild, grandma, grandpa, child Researchers have discovered the secret to long-lasting relationships between grandparents and grandchildren.Photo credit: Canva

The secret that’s been hiding in plain sight

Researchers have spent years trying to understand why some grandparent-grandchild relationships are absolute magic whiles others just…aren’t. In a collection of generational research, scientists and psychologists have studied hundreds of families, tracked brain scans, measured stress hormones, and tracked childhood relationships for decades.

What they discovered was nothing short of amazing—and it might make you want to call your grandparents right now.

Grandparents who create those unbreakable bonds aren’t doing anything extraordinary; actually, it’s the exact opposite. They’re not the ones with the biggest toy budgets or most elaborate vacation plans. Instead, they’re practicing eight surprisingly simple habits that literally rewire children’s brains for trust, empathy, and emotional resilience.

And here’s the kicker: most of them don’t even realize they’re doing it.

via GIPHY


The 8 habits that change everything

(1) They show up for the boring stuff:

Yes, birthday parties and graduation ceremonies are important, but grandparents who build the strongest bonds with their grandchildren understand something profound: random Tuesday afternoons matter just as a much as special occasions.

Child psychologists call this “predictable availability,” and it amounts to something like relationship gold. When kids know that grandma will be there, not just for the big moments, but also for homework help, scraped knees, and all the mundane moments that make up life, something powerful happens in their brain.

They develop what attachment theorists refer to as “earned secure attachment”—an unshakable trust in the other that becomes the bedrock for many other relationships they’ll experience in their lifetime.

via GIPHY

(2) They listen like their life depends on it

In our phone-buzzing, multitasking world, grandparents who offer their grandchildren their complete, undivided attention generate something rare and increasingly precious. We’re talking about the kind of listening where phones remain face-down and eye contact doesn’t waver.

Without distractions, grandparents are able to really connect with the grandchildren in a way they might not experience in other aspects of their lives—and even for youngsters, that goes a long way.


 grandparents, granchild, grandma, grandpa, child Grandparents who consistently show up for their grandchildren tend to have more satisfying relationships. Photo credit: Canva

(3) They tell stories that make themselves human

The most powerful grandparent storytellers aren’t the ones with the most exciting tales, like meeting Mick Jagger backstage at a concert (although, that would be kind of cool): they’re the ones who are willing to be vulnerable. When grandpa admits that he failed his driving test twice, or grandma shares how terrified she was on her first day of high school, grandchildren learn important life lessons, like that imperfection is normal and resilience is possible.

In a paper published by Cambridge Development and Psychology, this phenomenon is labeled “narrative coherence.” These stories help children see themselves as a larger part of the family narrative, creating a sense of identity and belonging that research shows reduces anxiety and increases self-esteem.


via GIPHY

(4) They cultivate judgment-free zones

Perhaps the most crucial habit involves cultivating what psychologists call “emotional safety nets.” These grandparents become skilled at offering comfort without conditions; acceptance sans lectures.

Children need at least one adult in their lives who accept them unconditionally. While parents must balance love with guidance and discipline, grandparents are uniquely positioned to fill this crucial role.

“For kids, an extremely important resilience factor is a warm, nurturing relationship with a parent, caregiver, or other adult,” said Dr. Sara VanBronkhorst, a voluntary faculty in psychiatry at Columbia who led a 2023 study published in JAMA Psychiatry. “Our study demonstrates that children who have at least one positive, committed adult-child relationship are less likely to experience depression, anxiety and perceived stress later in life.”

via GIPHY

(5) They let the kids be the teachers

Here’s where it gets fascinating: the strongest grandparent-grandchild bonds often include moments where the child becomes the teacher. When grandparents humble themselves to learn about their interests—Pokémon cards, hour-long YouTube videos about ant colonies, hilarious TikTok filters, etc.—something wonderful occurs.

For children, teaching an adult something, no matter how mundane, validates their knowledge and boosts self-confidence. Research confirms that kids who regularly teach adults develop stronger communication skills and higher self-esteem.

(6) They keep their promises

This might seem obvious, but think back to childhood: how many times did you hear statements like, “I promise I won’t get mad,” and the exact opposite happened? Children’s brains are finely tuned to reliability patterns, meaning, when grandparents consistently follow through on commitments—even tiny ones—they build “earned security.”

This doesn’t need to be nitpicky. For example, when grandpa calls ahead to explain to his grandchild that Crumbl was closed, so he can’t bring the “promised” cookies, but suggests making them together instead, he doesn’t just fulfill a promise. He strengthens the bond by showing that his commitment matters, despite how “small” it may seem.

via GIPHY

(7) They carve out one-on-one time

Family gatherings are crucial, but the deepest bonds form during individual interactions. Research shows that children have multiple aspects to them—different parts of themselves that emerge in various contexts. For example, a quiet child might become suddenly chatty during a solo walk with grandma.

These individual connections don’t require elaborate activities or effort. Sometimes, the most meaningful moments happen between a grandchild and grandparent during simple car rides to the grocery store or while folding laundry together.

(8) They adapt as the kids grow

The grandparents who maintain strong bonds through everything—the terrible twos, that phase when all the child can ask is “Why?”, and the teenage years—understand that all relationships must evolve. This might feel strange at first, like accepting the once-cuddly grandchild who now prefers fist bumps to hugs, or the moody teen who prefers to quietly scroll on their phones during visits.

Grandparents who take this all in stride, who can adapt without taking these changes personally, often find their relationships with their grandchildren to deepen during adolescence.

 grandparents, granchild, grandma, grandpa, children The most powerful connections don't spring from grand gestures or expensive gifts.Photo credit: Canva

It’s the simple truth that changes everything

So, the next time you're with your grandchildren—or you're thinking about the grandparents you’re lucky to have in life—remember this: the most powerful connections don’t spring from grand gestures or expensive gifts.

Relationships that matter—relationships that thrive—grow through an accumulation of small moments when someone important chooses to show up, listen with their whole heart, and love without conditions. In a world that increasingly feels divided and disconnected, these grandparent-grandchild relationships offer something quite precious: proof that genuine human connection is still possible, one random Tuesday afternoon at a time.

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Wellness

What’s the science behind the summer ‘Cortisol Cocktail’ trend everyone’s talking about?

These mocktails purportedly support relaxation, stress reduction, and healthy adrenal function.

Photo credit: Canva

As non-alcoholic socializing grows, people are increasingly seeking non-booze options to unwind.

Science confirms what many of us already feel—we're stressed. The eighth edition of the Censis-Eudaimon report, which analyzes the relationship between work, companies, and employee well-being, revealed that 31.8% of people feel “close to burnout” due to workplace stress. Meanwhile, as non-alcoholic socializing continues to grow, with sober bars and events gaining popularity, people are seeking booze-free options to help them unwind. Enter the latest trend promising relaxation without the hangover: Cortisol Cocktails.

These viral drinks—available in various flavors and colors—are alcohol-free beverages made with ingredients that purportedly lower cortisol, restore energy, relieve tension, and balance hormones. But is this just a catchy, alliterative name? Or could cortisol cocktails actually deliver on their promises? Let's dive in.

 woman, mocktail, drinking, juice, non-alcoholic Cortisol prepares your body for “fight or flight” situations, but shouldn't produce too much of it.  Photo credit: Canva  

 

So, what is cortisol?

 

First things first: Cortisol is a steroid hormone produced in the adrenal glands (which sit atop the kidneys), often called the “stress hormone” because your body releases more of it when facing physical or emotional stress. By regulating the body's stress response, cortisol prepares you for “fight or flight” situations. This isn't necessarily bad—producing cortisol is valuable for the body, as it plays a vital role in regulating metabolism, inflammation, and blood sugar levels, while helping to balance our circadian rhythm. However, like everything in life, beware of excess cortisol. While temporary increases are healthy and normal, chronically elevated cortisol keeps you in a constant state of stress and can lead to harmful long-term effects, including anxiety, depression, irritability, fatigue and sleep problems, increased weight gain (especially around the abdomen), and memory problems or brain fog.

The science behind cortisol mocktails

 

While there are plenty of ways to lower cortisol, like spending time in nature and maintaining positive social interactions, these solutions lack one thing: deliciousness. (Another non-delicious yet interesting cortisol fact: a 2023 study found that laughter is a great way to lower cortisol levels, noting that “spontaneous laughter is associated with greater reduction in cortisol levels as compared with usual activities, suggesting laughter as a potential adjunctive medical therapy to improve well-being.”)

Cortisol mocktails—also called “adrenal cocktails”—are alcohol-free beverages concocted with a medley of ingredients that purportedly support relaxation, stress reduction, and healthy adrenal function. While no drink can “cure” stress, these beverages contain ingredients that are associated with managing cortisol and offer other beneficial qualities.

via GIPHY

Research shows that adaptogens like ashwagandha, rhodiola, and holy basil help the body adapt to stress and may lower cortisol levels. The same goes for foods rich in vitamin C—think bright citrus fruits, berries, and pineapple. Meanwhile, a dash of magnesium can support muscle relaxation and stress response, and L-theanine (an amino acid found in green tea) promotes relaxation without causing drowsiness.


 

Three cortisol mocktail recipes to try this summer

 

(1) Tropical pineapple coconut mocktail

 

This refreshing drink combines pineapple and coconut water, creating a dynamic combo for supporting adrenal health. Pineapple is sweet and loaded with vitamin C, which is especially essential for adrenal function, as the glands use large amounts of it to produce stress hormones and combat oxidative stress. Coconut water, on the other hand, is naturally high in potassium, magnesium, and sodium: three electrolytes essential for maintaining fluid balance and proper adrenal gland activity.

Ingredients:

 
  • ½ cup cubed pineapple
  • ¾ cup coconut water
  • 1 lime, juiced
  • ½ tsp monk fruit sweetener (or honey)
  • ¼ tsp sea salt
 

Instructions:

Blend all ingredients for 20–30 seconds until smooth. Pour over ice and enjoy. This tropical treat provides vitamin C, potassium, magnesium, and vitamin B6—all while making you feel like you’re getting ready for a vacation.

 group, mocktail, drinking, juice, non-alcoholic Green tea, pineapple, and coconut water are all associated with lowered cortisol levels. Photo credit: Canva

Calming matcha lemon balm mocktail

 

Green tea is a natural wonder, offering a ton of health benefits and bringing even energy without any jitters, spikes, or crashes. That’s because of its natural contents: caffeine and L-theanine, an amino acid that promotes relaxation and supports healthy sleep and stress levels. A 2022 study found that increased consumption of green tea led to significantly reduced levels of elevated stress hormones like cortisol in teenagers.

Ingredients:

 
  • 1 cup sparkling water
  • ⅓ tsp matcha green tea powder
  • 1 inch cucumber, sliced
  • 2-3 fresh lemon balm leaves (or 1 lemon balm tea bag, brewed and cooled)
  • Juice of ½ lime
  • Natural sweetener to taste
  • Ice
 

Instructions:

Muddle cucumber and lemon balm in a shaker. Add matcha, lime juice, sweetener, and ice. Shake well, strain into a glass, and top with sparkling water. Garnish with lime and cucumber slices.


 woman, mocktail, drinking, juice, non-alcoholic Keep in mind, cortisol mocktails are not magic potions. Photo credit: Canva

 

Sleepy girl mocktail

 

Ideal for winding down, this delicious nightcap combines magnesium with the naturally occurring melatonin present in cherry juice that supports sleep and relaxation.

Ingredients:

 
  • 1 tsp magnesium powder (berry-flavored works great)
  • 2 oz organic tart cherry juice
  • 10 oz sparkling water
  • Ice
 

Instructions:

Combine magnesium powder and tart cherry juice in a glass. Top with sparkling water and ice. Sip in bliss as you prepare for a restful night.

via GIPHY

The bottom line

 

It’s important to keep in mind that cortisol mocktails aren’t magic potions. Don’t look to social media for cure-alls or for alternatives to medicine or a doctor’s advice, either.

“If you think there’s something wrong with your hormone levels, it’s so, so critical to seek the help of an endocrinologist instead of trying to do your own research to diagnose and treat yourself,” says Christine Byrne, dietitian and owner of Ruby Oak Nutrition, to CBS News. “Lots of influencers and wellness companies prey off people with difficult-to-diagnose symptoms by blaming these symptoms on vague problems like hormone imbalance or adrenal fatigue, then selling a supposed solution. But most of this stuff isn’t evidence-based or thoroughly tested.”

While these mocktails aren't substitutes for medical treatment of chronic stress, they offer a delicious and supportive addition to your stress-management routine. (Be sure to incorporate other essential lifestyle factors like adequate sleep, regular exercise, and stress management techniques like yoga and meditation.) The next time stress weighs heavily on you, remember that relief might be just a sip away. Cheers!

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Science

Scientist demonstrates the bizarre, explosive method used to determine calories in food

I've been eating food my whole life and never knew this!

Canva Photos

Food energy is real energy, and it can be measured as such.

About ten years ago I started working out for the first time in my life, and with it, paying attention to the food I put in my body for breakfast, lunch, and dinner. I never knew much before that about calories, other than the tired "2000 a day" guideline. I could hardly tell you about macronutrients, or how much protein an active person should get. And so, later in my life, I had quite an education.

But there's still a lot that I don't know, apparently, because it wasn't until very recently that I learned where calories come from; or rather, how they're tallied up for inclusion on a food label. Of course, I am familiar with the idea that you can always count up the different ingredients in a meal and their known nutritional values. For example, if you're baking, it's easy to find out the calories in one cup of flour, a tablespoon of sugar, and so on.

But how are the calories in base foods even calculated? And furthermore, how do we know for sure how much protein, fat, or carbs are in certain foods?

It "blew" my mind when I learned that food scientists have a fascinating process for determining the amount of energy contained in different foods. It involves a strange machine called a "bomb calorimeter."


 food, nutrition, calories, healthy eating, protein, fats, carbs, vitamins, minerals, eating, science, food science An old bomb calorimeter from the 1960sSeth/Flickr

We all know that food gives us energy, but you've likely never thought of food energy in the same terms as the other different forms of energy like lights, heat, electricity, etc. I know I had never thought of it like energy energy.

But that's exactly what it is, and calories are a very specific measure of that energy.

So in order to determine how many calories are in a certain food, ingredient, or meal — get this — scientists literally blow it up and measure the results of the explosion.

How cool is that!?

In the video below, scientists from the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University show the fascinating process from start to finish.

In the experiment, the team prepares a Christmas dinner plate of turkey, gravy, and potatoes. The first step to determining the calories in the meal is to "homogenize it" or blend it into smithereens, destroying any large chunks and turning the meal into a smooth, near-liquid. Yum!

"Then, over the course of three days we slowly remove all the moisture from it in a freeze drier," says Dr. Sue Roberts. Imagine turning that gooey slop into something similar to the consistency of astronaut food.

The dried samples are then compressed into extremely dense pellets about the size of a Tums antacid.

Now here comes the Parr 6200 "bomb" calorimeter. The very precisely measured pellet-ized portion of the original dinner is put into a chamber and lowered into some water inside the machine. An electrical charge is then applied to the food to "explode it."

Why the water? The calorimeter is able to measure the exact temperature of the water before and after the food explosion. When you look at the actual definition of a calorie, which according to Merriam-Webster is: "the amount of heat required to raise the temperature of one kilogram of water one degree Celsius," it all starts to make sense. Take the temperature of the water after the explosion and you can determine exactly how much energy was contained in the food pellet based on the temperature increase. Amazing!


  - YouTube  www.youtube.com  

The calorimeter first came about in the 1800s. Even then, our understand of heat, energy, and food science was extremely limited.

As recently as the 1700s, scientists generally believed heat was made of some kind of weightless gas, which they called "caloric."

The theory was disproven in 1799 when Sir Humphrey Davy, an English chemist, rubbed two pieces of ice together in a vacuum (which contains no air or gas) and was able to generate friction heat, thus melting the ice. It was roughly around the same time that Antoine Lavoisier and Pierre Simon de la Place developed the first calorimeter.

Calorimeters, and the Calorie itself, weren't regularly used for food until the late 1800s.

As cool as it is (and it is extremely cool) exploding food in a bomb calorimeter isn't the most common practice today.

Frankly, it's usually not necessary when you can estimate nutritional values in other ways. More common today is the Atwater System, which estimates calories based on the nutritional breakdown of a food item as such:

  • Four kcals (calories) for one gram of protein
  • Four kcals for one gram of carbohydrates
  • Nine kcals for one gram of fat
  • Seven kcals for one gram of alcohol
All of these elements can be tested and measured in different, fascinating ways. Protein is counted by measuring the nitrogen released from food after putting it through some an artificial digestive process. Fats are measured by weighing the food, then stripping the fats away with ether, and weighing it again.

Carbs are the most complicated and thus are often measured by subtracting the percentage of proteins and fats. The remainders, by definition, should be carbohydrates.

 food, nutrition, calories, healthy eating, protein, fats, carbs, vitamins, minerals, eating, science, food science This food is on FIRE!  Giphy  

And, of course, bomb calorimeters have lots of different uses besides determining the calories in the newest line of flavored Doritos. They can be used to test the energy potential of alternative fuels, find more efficient animal feeds, and analyze samples of oil or coal for their potency.

Understanding this process kind of changes the way I look at food. You can't really see the energy in a bag of chips, let's say, but maybe you can imagine the way it might heat a pot of water if it exploded! It makes the numbers on the back of a nutritional label a little more tangible and real, and can maybe lead to more mindful and intuitive eating practices.

Ultimately, though, there is so much more to food than the calories it contains. There are the nutrients, like the proteins, carbs, and fats — the micronutrients like vitamins and minerals that our bodies need. Some people like to know as little as possible about the inner workings of our food and focus purely on their enjoyment of the making, eating, and sharing. But if you're like me, you like to know the science behind food production, and how and why food powers our bodies the way it does. That's all part of the fun.

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