Over the last few years,
sustainability has become one of the biggest buzzwords in the fight against environmental problems like climate change, loss of biodiversity, ecosystem degradation, and pollution. But what does sustainability actually mean? And how do you make it part of your everyday life?
Broadly speaking, sustainability is the idea that we must meet our own needs
without compromising the ability of others to meet their needs, whether the “others” in question are future generations or people living in other parts of the world. But understanding the basic concept is one thing. Practicing it is quite another.
Every single day we make dozens of different choices that impact our planet. But understanding this impact is not easy. And when it comes to green living, there is a lot of conflicting information about what’s eco-friendly, what’s not, what’s fact, and what’s fiction.
But green sustainable living is possible. With a little guidance, we can all learn to make better choices for ourselves and the planet.
And that’s where the Sustainable Living Online Course from International Open Academy comes in.
Sustainable Living Online Course

When it comes to green living, there’s certainly no shortage of information available on the internet. The trouble is figuring out who knows what they are talking about and what information is legit.
If you’re tired of spending half of your research time trying to vet your sources and you just want straight answers to your questions about sustainable living, the Sustainable Living Online Course is for you. Sustainability experts designed this course to be the ultimate resource on sustainable living. As such, it covers everything you need to know to lead a renewable life that keeps you and the planet healthy.
Key topics covered in this online course include:
- how to make sustainable living easy
- how to look great without damaging the environment
- how to spot companies that aren’t eco-friendly
- how to save money and the planet at the same time
- how to find sustainable food that tastes great
- how to make simple swaps that make a big impact
Of course, the Sustainable Living Online Course won’t magically reduce your carbon footprint to zero. You’ll still have to put in the work and implement what you learn. But this course will give you the tools you need to be a better citizen and live a healthier, more natural life.
International Open Academy, or IOA, is one of the internet’s most trusted sources for online learning, with over a million students in 139 different countries. Whether you want to learn coding, interior design, or knitting, IOA’s accredited online courses make learning easy, fun, and affordable. No matter the subject, IOA courses focus on practical skills, with videos, texts, activities, and exams that students work through at their own pace.
Normally, the Sustainable Living Online Course costs $119. However, you can enroll through Groupon for just $17, which is a whopping 86 percent off the regular price.
If you’ve made it your goal to be more eco-friendly in 2023 but are unsure where to start, this deal on the Sustainable Living Online Course from International Open Academy is definitely for you. Click here to start your sustainable living journey today.
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A safe, stable home can change lives for the better. Here’s how Habitat for Humanity wants to make that possible for everyone.
Better health, better jobs, and a brighter future all start with access to a safe, affordable home.
A single door can open up a world of endless possibilities. For homeowners, the front door of their house is a gateway to financial stability, job security, and better health. Yet for many, that door remains closed. Due to the rising costs of housing, 1 in 3 people around the world wake up without the security of safe, affordable housing.
Since 1976, Habitat for Humanity has made it their mission to unlock and open the door to opportunity for families everywhere, and their efforts have paid off in a big way. Through their work over the past 50 years, more than 65 million people have gained access to new or improved housing, and the movement continues to gain momentum. Since 2011 alone, Habitat for Humanity has expanded access to affordable housing by a hundredfold.
A world where everyone has access to a decent home is becoming a reality, but there’s still much to do. As they celebrate 50 years of building, Habitat for Humanity is inviting people of all backgrounds and talents to be part of what comes next through Let’s Open the Door, a global campaign that builds on this momentum and encourages people everywhere to help expand access to safe, affordable housing for those who need it most. Here’s how the foundation to a better world starts with housing, and how everyone can pitch in to make it happen.

Volunteers raise a wall for the framework of a new home during the first day of building at Habitat for Humanity’s 2025 Carter Work Project. Globally, almost 3 billion people, including 1 in 6 U.S. families, struggle with high costs and other challenges related to housing. A crisis in itself, this also creates larger problems that affect families and communities in unexpected ways. People who lack affordable, stable housing are also more likely to experience financial hardship in other areas of their lives, since a larger share of their income often goes toward rent, utilities, and frequent moves. They are also more likely to experience health problems due to chronic stress or environmental factors, such as mold. Housing insecurity also goes hand-in-hand with unstable employment, since people may need to move further from their jobs or switch jobs altogether to offset the cost of housing.
Affordable homeownership creates a stable foundation for families to thrive, reducing stress and increasing the likelihood for good health and stable employment. Habitat for Humanity builds and repairs homes with individual families, but it also strengthens entire communities as well. The MicroBuild® Initiative, for example, strengthens communities by increasing access to loans for low-income families seeking to build or repair their homes. Habitat ReStore locations provide affordable appliances and building materials to local communities, in addition to creating job and volunteer opportunities that support neighborhood growth.

Marsha and her son pose for a photo while building their future home with Southern Crescent Habitat for Humanity in Georgia. Everyone can play a part in the fight for housing equity and the pursuit of a better world. Over the past 50 years, Habitat for Humanity has become a leader in global housing thanks to an engaged network of volunteers—but you don’t need to be skilled with a hammer to make a meaningful impact. Building an equitable future means calling on a wide range of people and talents.
Here’s how you can get involved in the global housing movement:- Speaking up on social media about the growing housing crisis
- Volunteering on a Habitat for Humanity build in your local community
- Travel and build with Habitat in the U.S. or in one of 60+ countries where we work around the globe
- Join the Let’s Open the Door movement and, when you donate, you can create your own personalized door
- Shop or donate at your local Habitat ReStore
Every action, big and small, drives a global movement toward a better future. A safe home unlocks opportunity for families and communities alike, but it’s volunteers and other supporters, working together with a shared vision, who can open the door for everyone.
Visit habitat.org/open-door to learn more and get involved today.
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Airline pilot reveals the crucial reason why there’s a tiny hole in every airplane window
You’ll see them on every plane no matter where you sit or which airline you’re flying.
Have you ever been crammed into the window seat in a plane and, while gazing down at the terra firma beneath you, noticed that there was a tiny hole in the window? According to Petter Hörnfeldt, aka Mentour Pilot, a Swedish commercial airline captain, those holes could one day save your life.
In a TikTok video, Hörnfeldt explains that there are three layers to the windows on a commercial airliner. The outside window is the strongest because it was designed “to handle any impacts as well as the pressure difference between the thin high altitude air outside of the plane and a pressurized air inside,” Hörnfeldt says.
Then there is the middle layer, with a tiny hole, designed to protect the outer layer. The final layer is the one you can touch or press your nose up against to see what you’re flying over.
Why do airplane windows have tiny holes?
“So why the hole then? Well, because there is air between those layers. Differences in pressure and temperature would otherwise start causing forces to build up between the layers, trying to bend them inwards or outwards, which is something that we obviously do not want, since especially the inner two layers are not designed to take those kind of forces. So that little hole is put there to allow air to flow through slowly and relieve that potential pressure difference. Hence the name breather hole,” Hörnfeldt says.

The tiny hole in an airplane window. Credit: Canva “Now, the inner window layer, the one that’s closest to you, doesn’t really need a hole because it’s fitted in a way that allows air to flow around it. But that breather hole also serves a different job, which is to make it more difficult for moisture to become trapped between the layers and start fogging up your window, stopping you from admiring the view outside,” Hörnfeldt continues.
In his most popular video, Hörnfeldt admitted that commercial airline pilots know when you’ve flushed the toilet on a plane.
Do pilots know when you flush the toilet on a plane?
According to Hörnfeldt, pilots don’t know that you’ve flushed a toilet based on an alert, security camera footage, or a sudden power surge. They know that the toilet has been flushed because of a slight change in cabin pressurization. Airplane toilets use a special vacuum flushing mechanism to suck the contents out. The vacuum system is calibrated to the cabin air pressure. “But that flushing actually does show up on our instruments as a sudden cabin climb on our cabin vertical speed indicator,” Hörnfeldt says. “So we can see it. And it kind of makes sense, if you think about it.”
Next time you see the tiny hole in an airplane window as you gaze upon your hometown at 35,000 feet, you know that it’s not a manfcatingring mistake. It’s here to keep you safe in a cabin with a pressurized system that also knows if you used the bathroom. Aren’t airplanes just incredible?
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Doctors kept dismissing her persistent cough. One heroic nurse refused to let it go.
“Had Alison not picked up on the fact that she was sure something else was wrong, I don’t know what would have happened.”
Julie Silverman had been coughing for years. Not the kind of cough that goes away with some rest and cough syrup, but a persistent, worsening cough that no doctor seemed able to explain or fix. As she shared on NPR’s Hidden Brain podcast in the “My Unsung Hero” segment, the experience of being dismissed by the healthcare system over and over again was exhausting.
“I had, at this point, gotten kind of dismissive about it because I had been dismissed by so many doctors as, ‘There’s nothing wrong, you’re not responding to our treatments, we’ll try something else,’” Silverman recalled.
But one person refused to dismiss her: a nurse practitioner named Alison.

A nurse checks the vitals of a patient. Photo credit: Canva Alison worked at one of the clinics Silverman visited regularly, and unlike the doctors who had cycled through various unsuccessful treatments, Alison kept paying attention. She was perplexed by the cough and made it her mission to track Silverman’s condition over time.
During one of Silverman’s weekly appointments, Alison noticed something concerning. Silverman’s symptoms had gotten worse. Her voice was hoarse, she was breathless and wheezing, and the coughing was more severe than before.
“She was just adamant something was wrong with my airway,” Silverman said.
Alison immediately pushed one of the physicians at the clinic to perform a scope of Silverman’s trachea. The procedure involved inserting a small camera through her nose and down the back of her throat to look for blockages.
“I could just tell by their faces something was not right,” Silverman remembered.
The scope revealed what years of doctor visits had missed. Silverman had idiopathic subglottic stenosis, a rare condition that affects about one in 400,000 people. Scar tissue had been building up at the top of her trachea, and her airway was 75% blocked. That’s why she’d been coughing. That’s why nothing had worked. And if it had gone untreated much longer, it would have been fatal.
“This is a very serious condition and fatal if not treated because your airway completely closes,” Silverman explained.
The diagnosis finally gave Silverman what she needed: the right information to find the right specialist who could actually treat her condition. She’s now doing well, spending her time volunteering at her local hospital, riding her bike, hiking, skiing, and enjoying time with friends and family.
But she hasn’t forgotten what Alison did for her.
“Had Alison not picked up on the fact that she was sure something else was wrong and gotten this physician to look in my throat, I don’t know what would have happened,” Silverman said. “It was her persistence and diligence and her listening to me and taking me seriously that got my diagnosis in a timely enough fashion to do something about it. So, for these reasons, Alison is my unsung hero.”
Our healthcare system is increasingly driven by rapid diagnoses and technology, but sometimes what saves a life is just simple human attention. Someone who listens, keeps watching, and refuses to dismiss what they’re seeing even when everyone else has moved on.
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Three lions have the most beautiful reaction to a man singing a Guns N’ Roses song to them
“What a beautiful interaction to witness.”
There are several stories written about music taming the savage beast, but this is no fairy tale. A video shows a small pride of lions in an enclosure hear the acoustic guitar and soothing singing of a French singer-songwriter covering Guns N’ Roses’ “November Rain.” One would think that the animals would be annoyed or ignore the music period. Instead, something heartwarming happened.
One by one, the lions approached the musician known as Plumes as he performed. They calmly laid down and started yawn-singing to the tunes while nuzzling one another, with two lions cuddling less than a yard from where Plumes sat and played. The lions were relaxing and enjoying the concert along with their afternoon nap, showing off the gentler side of the predatory wild cats.
People remarked upon the lion’s reaction to Plumes’ tunes:
“Wow! That is truly an incredible interaction with them. They really enjoyed your singing to them.”
“Omg, the way they cuddle.”
“What a beautiful interaction to witness.”
“Music is the universal language!”
“That was so magical! Music speaks to the soul. Human, animal, all relate to the feelings music evokes.”
This isn’t the only time Plumes has performed for an animal audience. In fact, his social media and YouTube channel show videos of multiple concerts for humans and creatures alike. He not only has played his guitar and sang for lions, but for tigers and bears (oh my!) among many other animals at wildlife refuges, enclosures, and zoos.
While Plumes performs his music for a wide variety of animals today, he started at home, playing for a herd of cows in the French countryside while living with his grandmother.
“I read somewhere that cows like music, that it’s soothing to them,” Plumes shared with AMFM Magazine. “They were super receptive. They gathered around, some even rubbed against me. It was magical.”
Since then, Plumes had been taking the opportunity to warm up his vocal chords and provide various animals a free mini-concert throughout his tours and travels, recording video of their reactions to his music.
“Animals inspire me to be kinder, more patient,” he added. “They remind us to reconnect with nature. Maybe we’ve lost touch with nature, and these videos help people feel that connection again.”
Understandably, most people believe music and music appreciation are uniquely human traits, but there are studies that music isn’t exclusively for homosapiens’ enjoyment. Some studies show different species reacting positively to music in different ways. Chimpanzees sway to music, dogs tend to show calmer behaviors when listening to classical music, and sea lions synchronize their head movements to a song’s beat, just to name a few. There are veterinarians that suggest creating a music playlist for your dog to play when leaving the house so it helps reduce their separation anxiety.
It’s interesting to see how music impacts different animals in different ways, especially if music helps them. Over time, who knows how much music will bring man and animal closer together. If a lion can enjoy Guns N’ Roses, the possibilities are nearly endless.
This article originally appeared last year. It has been updated.
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The reason ‘good’ people experience less joy but feel more fulfilled in life
Being conscientious has some truly unexpected pros and cons.
If you’re not one, you probably know one: conscientious people are never late, they’re organized, and their word is their bond. They do things the “right” way. They like things in order. And they have a strong, nearly unbreakable sense of right and wrong.
They’re often good people. Very good. It’s hard to imagine there could be a downside to this personality type. But new research indicates there’s a little more to it than meets the eye.
New research reveals the costs of being too “good”
A recent study out of the University of Galway aimed to find out how personality traits affect the way we experience emotions.
Researchers began by measuring participants using a Five-Factor Model, which breaks personality into five key dimensions: Openness to Experience, Extraversion, Agreeableness, Neuroticism, and Conscientiousness.
Then they exposed the volunteers to several video clips which were each designed to elicit a specific emotion: anger, disgust, fear, joy, sadness, and surprise.
Interestingly, the clip the team chose to elicit joy was none other than the famous diner scene from When Harry Met Sally: a comedy classic.
People who scored high in conscientiousness were among the only group to react negatively to finding the scene funny or enjoyable. It did not trigger nearly as much joy in this group as it did for the others.
The research team theorized that, with such a powerful correlation, it was relatively safe to say that extremely orderly, structured, and conscientious people may have a lower capacity for experiencing spontaneous joy.
But there’s still a powerful upside to being conscientious
Here’s the tradeoff: while highly conscientious people laughed less and felt less joyful during the comedy scene, they also reacted less powerfully to the scene that primarily stimulated sadness.
What scene was that? The Lion King, of course. You know the one.
The findings suggest that, perhaps, living a structured and highly-orderly life can protect against negative emotions—even at the cost of some of the good ones.
Think about it. Imagine a person who never misses a deadline, forgets to pay a bill, or runs a red light. They’re never in trouble. People don’t get angry at them. They don’t wind up on probation at work or, worse, in jail.
“How people structure their environment may be a key shield from experiencing sadness, which may represent a significant motivator for people high in orderliness if they are sensitive to this emotion,” the researchers wrote.
If that doesn’t sound like a worthwhile tradeoff, another recent study builds on these findings and explores even more of the upside to living a conscientious life.
“Good” people excel at finding meaning and satisfaction in their work
Psychology Today reveals details of another recent study where, again, the Big Five personality dimensions were used to sort people into buckets.
Researchers out of KU Leuven found that highly conscientious people were among those most likely experience a “flow state.”
Flow is a mental state where you become completely immersed in your work, to the point that you don’t even notice the passage of time. It’s sometimes known as being “in the zone,” a state of effortless momentum, and generally people find it to be an enjoyable and deeply meaningful feeling.
“The characteristics of Conscientious individuals are essential for maintaining focus, managing challenges, and regulating efforts toward meaningful tasks,” the study’s authors write.
Psychology Today sums up the cutting-edge research: “Being dutiful, organized, and especially orderly may have its limitations, at least in terms of joy. However, there is the advantage of being less likely to get into the type of trouble that would trigger negative emotions. Then there is the upside of being able to bury yourself in your daily tasks to the point of not becoming bored or finding them useless.”
One bummer for conscientious people: being structured and organized to the point that you’re less joyful and less likely to laugh at something funny might make you less likable overall. But, you probably won’t care: further research suggests conscientious people live longer and stay sharper and healthier into old age better than their peers.
If it all seems like a moot point—after all, you’re either conscientious or you’re not—think again. Personality can, and often does change, over the course of a person’s life. It is possible to dial down your structured, risk-averse ways of thinking and open yourself up to more spontaneous joy. And it’s also possible to become more orderly and reliable, minimizing negative emotions and getting more done.
It’s a worthwhile exercise for anyone to see the upsides of their personality, who they truly are, and to know that who they are never has to be set in stone.
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A Bolivian tribe has nearly zero dementia. Scientists say our specific lifestyle is why we don’t.
Only 1% of this Bolivian tribe develops dementia. They walk 17,000 steps a day, eat almost no processed food, and have never heard of a wellness trend.
When CNN’s Dr. Sanjay Gupta traveled deep into the Bolivian Amazon to spend time with the Tsimané people, he wasn’t expecting to find a population that had essentially solved one of modern medicine’s hardest problems. But that’s close to what he found.
The Tsimané, an indigenous group of roughly 17,000 people living in the lowland jungle near the Bolivian Amazon, have a dementia rate of approximately 1 percent. Among Americans 65 and older, that figure is around 11 percent. Researchers who have studied the Tsimané extensively through peer-reviewed work published in the journals PNAS and Alzheimer’s & Dementia say the gap isn’t genetic luck. It’s lifestyle.

Members of a Bolivian tribe take a break at sunset. Photo credit: Canva The Tsimané don’t have a wellness plan. They have a life. An average member of the community walks around 17,000 steps per day, not on a treadmill but out of necessity in order to do the fishing, farming, hunting, and foraging in the forest around them. Their diet is roughly 70 percent complex carbohydrates, primarily plantains, cassava, rice, and corn, with around 15 percent fats and 15 percent protein. Processed food, added sugars, and added salts are largely absent. Their diet is dense in fiber and micronutrients like selenium, potassium, and magnesium.
They also practice intermittent fasting, but not as a trend but because food availability has natural limits. They sleep on a consistent schedule. They spend most of their waking hours physically active.
“This ideal set of conditions for disease prevention prompts us to consider whether our industrialized lifestyles increase our risk of disease,” Dr. Andrei Irimia, an associate professor at the University of Southern California who led one of the major studies, told researchers.
The contrast with American life is stark. A study published in the BMJ found that 60 percent of Americans’ daily caloric intake comes from ultra-processed foods. For children, registered dietitian Ilana Muhlstein told Fox News Digital, that figure climbs above 70 percent. The Tsimané’s cardiovascular health, separately documented in The Lancet, is similarly remarkable with some of the lowest rates of coronary artery disease ever recorded in any population.
None of this means moving to the Bolivian jungle is the answer. The Tsimané face real hardships that come with their lifestyle, including limited access to medical care for acute conditions. But researchers are increasingly clear that the chronic disease burden plaguing industrialized nations isn’t inevitable. It’s a product of specific choices about food, movement, and how we structure daily life that we’ve collectively made and could, at least in part, collectively unmake.
The Tsimané didn’t design a diet. They just never stopped moving, and never started eating processed food. The results, it turns out, are remarkable.
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Richmond hospital’s 73-year-old ‘baby cuddler’ whispers these 6 words into every newborn’s ear
He calls his volunteer baby cuddler job “the best gig I’ve ever had.”
Volunteer work is often rewarding, but few volunteer gigs are as delightfully enjoyable as baby cuddling. Maternity wards around the country train baby cuddlers who provide human comfort for newborn babies in nurseries and neonatal intensive care units (NICUs).
One Richmond, Virginia, man shared with WTVR News why he shows up at Children’s Hospital of Richmond at VCU every Tuesday and Thursday to hold babies. Dave Whitlow, 73, has been a baby cuddler for eight years, calling it “the best gig I’ve ever had.”
Baby cuddling involves more than just holding babies

NICU babies need specialized care. Photo credit: Canva Cuddling babies in the NICU is delicate work. Whitlow puts on a gown and gloves before picking up the babies, who can sometimes weigh as little as two pounds. He’s been trained to watch the monitors while cuddling them. If a baby’s oxygen saturation dips, they may need to be repositioned.
Whitlow, a retired local government manager, also checks with the nurses to see what a baby’s specific needs are.
“I ask the nurse, ‘Tell me. Tell me what this child is receiving. What kind of treatment? Is there anything special I need to know about it?’” the father of two and grandfather of three told WTVR.
But perhaps the best part of Whitlow’s time with the dozen or so babies he cuddles each week is what he whispers in their ear: “Grow strong, grow smart, grow kind.”
That’s really what he wants from people in general, he said.
Baby cuddling is often a great way for retired people to volunteer, as it’s not too physically demanding.
How do you become a baby cuddler?
If baby cuddling sounds like a dream volunteer opportunity, check with your local hospital to see if it has a program. Some hospitals have volunteer coordinators you can speak with or sections on their websites for volunteers.
Though volunteer requirements differ from place to place, you can likely expect:
- age requirement (often a minimum age of 18 to 21)
- commitment of a certain number of hours per week over a minimum time period (such as a year)
- personal interview
- background check
- health screening, including immunization verification and updated flu vaccines
- orientation and training
Baby cuddlers serve an important purpose in infant care
Cuddling a baby may be beneficial for the cuddler, but it genuinely helps the infants as well. One study found that the length of stay in the NICU for newborns with Neonatal Abstinence Syndrome was six days shorter for babies who were part of a volunteer baby cuddling program. And according to Intermountain Healthcare, research shows that human touch helps a baby’s brain and body develop. Short-term and long-term benefits of positive touch for babies include increased stability in vital stats, faster weight gain, shorter hospital stays, better pain tolerance, improved sleep, stronger immune systems, and more.
Baby cuddling truly is a win-win volunteer experience, especially when you’re someone who whispers words of strength, wisdom, and kindness in babies’ ears.
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Hotel employee shares how to make hotel eggs, and warns ‘you might never want them again’
“Whelp, that’s ruined my appetite.”
Some explainer videos fill you with a newfound sense of appreciation for little things you took for granted. This is not one of those times.
“Make hotel scrambled eggs with me,” Elizabeth Emmert, a hotel kitchen worker, began in a now mega-viral clip on TikTok.
However, before delving into the process, she warned, “You might never want them again.”
What followed was a breakfast routine that seemed better suited for a spaceship—or maybe a horror movie
Nary an egg was to be seen as Emmert grabbed a plastic bag full of sunny yellow goop (yum) and tossed it into a microwave. After the egg sack cooked for a few minutes, its yolk-like contents coagulated into a squishy, solid substance. She then cut the bag open, dumped the contents into a tray, and mashed them into small chunks.
And voilà: hotel eggs.
“Whelp, that’s ruined my appetite,” one viewer lamented
“[Hotel eggs] taste like they’re made exactly like that,” quipped another.
Why hotels use pre-mixed eggs
There are a few benefits hotels and other buffet-style establishments get from using pre-scrambled batches for their breakfast rushes. The first and most obvious is efficiency. Pre-mixed eggs allow for large-batch cooking in advance, without the need to crack hundreds of shells or do as much cleanup. Not to mention, you get a consistent batch virtually every time.

Eggs cooking in a skillet. Photo credit: Canva Then there’s cost. Premixed eggs are significantly cheaper, at around 19 cents per ounce (according to one restaurant food supplier, at least). Compare that to anywhere from $2.50 to over $6.00 for a carton of eggs.
However, this method does come with health concerns
Apart from the fact that these “eggs” may not taste as good as the real thing, there are a few other issues to consider. For one thing, the longer this dish sits out, the greater the risk of salmonella and other bacteria—especially if the tray remains open and the heat source goes out.
Plus, depending on the brand of liquid or powdered eggs the hotel is using, there may be preservatives in the mix to improve shelf life. And then, as many mentioned, there’s the potential consumption of what one viewer calls the “secret ingredient” of hotel eggs: microplastics.
And yet, for some commenters, there simply isn’t a deterrent strong enough to decline a free breakfast
“I mean if it’s free with stay, I ain’t complaining.”
“Girl move, I DON’T CARE. Give me my free hotel breakfast.”
“Lil pepper and hot sauce and some of that nasty cheap bread toasted and I’m all set babe.”
To each their own. But suddenly, the yogurt-and-banana option looks way more appetizing.












