upworthy
Add Upworthy to your Google News feed.
Google News Button
Family

Father of 3 shares what he learned about his wife’s ‘mental load’ after she left for 8 days

"I had no idea it felt like this."

dad with a sleeping child
Image credits: @ced/Instagram (used with permission)

Even involved dads aren't always fully aware of how much their wives manage mentally.

Parents today share responsibilities more equally than in past generations, but studies show childcare still falls disproportionately on women's shoulders. Some families choose one parent to take on the lion's share of childrearing and/or domestic duties, and if that works, great. Other couples work similar hours and have to figure out how to equally split home duties, but however the household is structured, mothers most often tend to be the "default parent" and household manager.

That means it's mostly moms that are constantly thinking about managing the million little details of parenting. The big things like feeding, bathing, transporting, teaching life lessons and such are fairly easy to share equitably. But the invisible work—keeping track of routine doctor and dentist appointments, communicating with teachers can caregivers, keeping extended family updated, figuring out what clothes to keep and get rid of as kids outgrow them, keeping the family calendar up-to-date, etc.—that's all part of the "mental load" of parenting that moms tend to carry, often without their partners even being aware they're doing it.

That's why one dad's confession after getting a taste of solo parenting has gotten a huge reaction. Cedric Thompson, Jr., a former NFL player and dad of three daughters, shared a video explaining that he didn't really understand the mental load his wife was carrying until she went to visit family in the Philippines for eight days, leaving him home alone with the kids.

"I've been a single dad for 8 days because my wife is in the Philippines and I had no idea it was this tough," he said with a sleeping child cradled in his arms. He explained that he was prepared for the cleaning, the transporting kids back and forth, the unexpected sickness, the feeding, and the sleeping. "But one thing I was not prepared for was the mental load," he said. "I had no idea it felt like this. To think about things that need to be done that haven't been done or things that I need to plan to do is so draining that I don't even have the energy to take care of myself at all."

This is why dads need to step into moms' shoes once in a while

"And now that I understand this, I have so much empathy for my wife," he said, "and I truly understand what she means by this 'mental load' and how draining it is. This has really opened my eyes and made me ask myself, what more can I be doing? What has been going on that I haven't been seeing and it's right in front of me? How can I step up the way that my wife needs me to instead of doing things that I think are helping?"

"I know I can't always take the mental load away, but I can definitely make it lighter."

There's a significant difference between assisting and managing, and when you're the sole parent for a while, you're forced to take on the management role. Eight days isn't very long, but it's enough to get a taste of being the one who to think about all the things all day. It's a lot. As Thompson wrote in the caption, "The endless planning, remembering, and organizing is exhausting in ways I never understood before. The most profound lessons come when we walk in someone else’s shoes, even if just for a little while."

Some people asked what he's been doing this whole time when his wife is home, but it seems some of those folks might be missing the point. This is an involved dad and husband, not a slouch. But even those who want to and try to share the load equally don't always know how to help with the mental load of the default parent because it's mostly internal. And trying to explain it and figuring out how to ask for help with some of it just adds more work, not to mention we don't even always know ourselves what we need help with. Stepping into the shoes of the default parent is really the best way to get a feel for what might be helpful without adding more to their plate.

The "mental load" is invisible, so it's nice to have it seen and validated

Some commenters weighed in with thoughts and tips for lightening the mental load;

"Pro tip: when your wife asks you what she should make for dinner, she’s trying to share the mental load with you. So just give her a straightforward answer."

"I love this…it’s called validation, empathy, and love🥰 Thank you for sharing this. The realization and verbalization of it makes the load lighter. Sometimes mental heaviness is worse than the physical."

"Really appreciate this post and how you explained yourself. The ‘mental load’ is that never-ending list running through our minds every single minute of the day. It’s the constant inner monologue of everything that needs to get done, the overwhelming pressure of how to get it all done, and the invisible timeline that gives you anxiety when you don’t meet it—even though you set those standards yourself.

It’s the feeling of failing if you don’t check every box. Walking into a room and forgetting why you’re there, only to lose your mind later when you finally remember—but now you’ve got ten other tasks at hand. It’s the frustration when you realize that everything you just cleaned is already dirty again.

Sometimes, it’s not even about what men do or don’t do; it’s the weight of our own thoughts that get to us. But when someone helps lighten that load, even just a little, it means everything."

"I love this. But to answer your question, the way you take the mental load away is you pretend you have to do it alone even when she comes back. Because that’s the reason she has mental load. Because she feels like she has to do most of it alone, even if you’re always there to “help”. That’s why I hate the word help. It implies that this is all her job. You’re doing well but keep digging deeper 💗 I do appreciate this post."

What exactly does the parental "mental load" entail? Here's a partial list.

And yes, there is a need to go deeper. As one commenter pointed out, "You are operating the day to day under a structure she put in place," so a lot of the mental work was already done before she even left. And parenting is a marathon, not a sprint, so getting familiar with a specific list of "mental load" items that non-default parents might not think about can be helpful. Someone offered this helpful—if utterly daunting—list of some of those items:

Planning teacher gifts for the holidays and the end of school. - getting that parent’s contact info for that play date. - researching, budgeting, and scheduling summer activities and when to sign up for them the January/Feb prior. - finding that in network pediatric ophthalmologist for an eye appt. Research that new dentist, schedule your kids vaccines, review the medical records, schedule that well child visit. - researching, scheduling, and budgeting the school and extracurricular schedule in the summer for the fall and in October for the winter/spring. - making time to be the family historian (researching, budgeting, and scheduling a family photographer 2 times a year, researching how to pick/buy outfits for the whole family, selecting and printing any prints, creating and ordering a photo book, organizing photo files, and physically organizing keepsake storage).

Teaching your kids about their heritage with activities. Research your family tree. - be the memory maker and plan fun activities for the family. Book those theater tickets, schedule that museum trip, plan that day trip to hike that waterfall, plan that vacation, schedule 3 farm trips a year, prep for activities leading up to the holidays. - 4 times a year audit your household belongings. What do you need to sell? What do you need to donate? What remaining needs a better storage system? Research the products that will help you stay organized and buy them. follow home organizers on social media. - Check your kids shoes. How are they fitting? Research and order/consign new clothing. - trim your kids nails once a week and cut their hair as needed (or schedule their hair appt). - plan your kids birthday party 2 months in advance, research activities, food, party favors, and decor ideas. create the invites and send them out 5 weeks in advance. 2 weeks in advance order the cupcakes, decor, party outfit, and gift wrapping.

Check in with guests food allergies, rsvps, and buy the gifts. 1 week in advance wrap the gifts, assemble the party favors, and take some cute photos of the birthday kid in their special outfit. Pack a bin of supplies you’ll need for the day of the party (scissors, wire and cutters, tape, paper goods, trash bags, matches, etc). - buy those tickets to your kids concert. - keep that first aid kit stocked up. - keep up weekly with school/teacher correspondence and volunteer at your kids school. - back to school shopping. - holiday planning.

Buy Halloween costumes at the end of September, plan a pumpkin farm day trip. Schedule any Halloween parties. The weekend before carve pumpkins. Take pictures day of. Buy nutcracker tix in October/ November, plan gifts, budget, and order. Research decor ideas, get desired supplies, and make them in Nov. meal plan and coordinate with family for thanksgiving. Set up decor and buy gifts, Christmas outfits, and wrapping supplies Black Friday. Wrap gifts, take kids out separately to pick out presents for their siblings. Research and schedule holiday outings as a family. Take pictures. Design, order, and send cards. Meal plan. Coordinate with the relatives.

Buy valentines cards for your kids class at the end of Jan. - talk to your kids about safety and abuse prevention 2-6 times a year in addition to “as needed”. - read the latest parenting books, listen to parenting podcasts, follow parenting accounts on social media. - plan kids craft projects. - take your kids to the library and keep up with the borrowed books. rsvp, order, and wrap a birthday gift for all the kid birthday parties. Write a nice note in a card about the child. - write thank you notes after birthdays, end of school, end of activities, after the holidays, and as needed."

There you go. Not even an exhaustive list, but a solid start. Thanks to Ced for the reminder that more we start putting ourselves on other people's shoes as parents and partners, the better off the whole family will be.

You can follow Ced on Instagram here.

This article originally appeared last year.

Planet

Our favorite giveaway is back. Enter to win a free, fun date! 🌊 💗

It's super easy, no purchase or donation necessary, and you help our oceans! That's what we call a win-win-win. Enter here.

Our favorite giveaway is back. Enter to win a free, fun date! 🌊 💗
True

Our love for the ocean runs deep. Does yours? Enter here!

This Valentine’s Day, we're bringing back our favorite giveaway with Ocean Wise. You have the chance to win the ultimate ocean-friendly date. Our recommendation? Celebrate love for all your people this Valentine's Day! Treat your mom friends to a relaxing spa trip, take your best friend to an incredible concert, or enjoy a beach adventure with your sibling! Whether you're savoring a romantic seafood dinner or enjoying a movie night in, your next date could be on us!

Here’s how to enter:


  • Go to upworthy.com/oceandate and complete the quick form for a chance to win - it’s as easy as that.
  • P.S. If you follow @oceanwise or donate after entering, you’ll get extra entries!

Here are the incredible dates:

1. Give mom some relaxation

She’s up before the sun and still going at bedtime. She’s the calendar keeper, the lunch packer, the one who remembers everything so no one else has to. Moms are always creating magic for us. This Valentine’s Day, we’re all in for her. Win an eco-friendly spa day near you, plus a stash of All In snack bars—because she deserves a treat that’s as real as she is. Good for her, kinder to the ocean. That’s the kind of love we can all get behind.


Special thanks to our friends at All In who are all in on helping moms!

2. Jump in the ocean, together

Grab your favorite person and get some much-needed ocean time. Did you know research on “blue spaces” suggests that being near water is linked with better mental health and well-being, including feeling calmer and less stressed? We’ll treat you to a beach adventure like a surfing or sailing class, plus ocean-friendly bags from GOT Bag and blankets from Sand Cloud so your day by the water feels good for you and a little gentler on the ocean too.

Special thanks to our friends at GOT Bag. They make saving the ocean look stylish and fun!

3. Couch potato time

Love nights in as much as you love a date night out? We’ve got you. Have friends over for a movie night or make it a cozy night in with your favorite person. You’ll get a Disney+ and Hulu subscription so you can watch Nat Geo ocean content, plus a curated list of ocean-friendly documentaries and a movie-night basket of snacks. Easy, comfy, and you’ll probably come out of it loving the ocean even more.

4. Dance all day!

Soak up the sun and catch a full weekend of live music at BeachLife Festival in Redondo Beach, May 1–3, 2026, featuring Duran Duran, The Offspring, James Taylor and His All-Star Band, The Chainsmokers, My Morning Jacket, Slightly Stoopid, and Sheryl Crow. The perfect date to bring your favorite person on!

We also love that BeachLife puts real energy into protecting the coastline it’s built on by spotlighting ocean and beach-focused nonprofit partners and hosting community events like beach cleanups.

Date includes two (2) three-day GA tickets. Does not include accommodation, travel, or flights.

5. Chef it up (at home)

Stay in and cook something delicious with someone you love. We’ll hook you up with sustainable seafood ingredients and some additional goodies for a dinner for two, so you can eat well and feel good knowing your meal supports healthier oceans and more responsible fishing.

Giveaway ends 2/15/26 at 11:59pm PT. Winners will be selected at random and contacted via email from the Upworthy. No purchase necessary. Open to residents of the U.S. and specific Canadian provinces that have reached age of majority in their state/province/territory of residence at the time. Please see terms and conditions for specific instructions. Giveaway not affiliated with Instagram. More details at upworthy.com/oceandate

quiet, finger over lips, don't talk, keep it to yourself, silence

A woman with her finger over her mouth.

It can be hard to stay quiet when you feel like you just have to speak your mind. But sometimes it's not a great idea to share your opinions on current events with your dad or tell your boss where they're wrong in a meeting. And having a bit of self-control during a fight with your spouse is a good way to avoid apologizing the next morning.

Further, when we fight the urge to talk when it's not necessary, we become better listeners and give others a moment in the spotlight to share their views. Building that small mental muscle to respond to events rather than react can make all the difference in social situations.


argument, coworkers, angry coworkers, hostile work enviornment, disagreement A woman is getting angry at her coworker.via Canva/Photos

What is the WAIT method?

One way people have honed the skill of holding back when they feel the burning urge to speak up is the WAIT method, an acronym for the question you should ask yourself in that moment: "Why Am I Talking?" Pausing to consider the question before you open your mouth can shift your focus from "being heard" to "adding value" to any conversation.

The Center for The Empowerment Dynamic has some questions we should consider after taking a WAIT moment:

  • What is my intention behind what I am about to say?
  • What question can I ask to better understand what the other person is saying?
  • Is my need to talk an attempt to divert the attention to me?
  • How might I become comfortable with silence rather than succumb to my urge to talk?

tape over muth, sielnce, be quiet, mouth shut, saying nothing A man with tape over his mouth.via Canva/Photos

The WAIT method is a good way to avoid talking too much. In work meetings, people who overtalk risk losing everyone's attention and diluting their point to the extent that others aren't quite sure what they were trying to say. Even worse, they can come across as attention hogs or know-it-alls. Often, the people who get to the heart of the matter succinctly are the ones who are noticed and respected.

Just because you're commanding the attention of the room doesn't mean you're doing yourself any favors or helping other people in the conversation.

The WAIT method is also a great way to give yourself a breather and let things sit for a moment during a heated, emotional discussion. It gives you a chance to cool down and rethink your goals for the conversation. It can also help you avoid saying something you regret.

fight, spuse disagreement, communications skills, upset husband, argument A husband is angry with his wife. via Canva/Photos

How much should I talk in a meeting?

So if it's a work situation, like a team meeting, you don't want to be completely silent. How often should you speak up?

Cary Pfeffer, a speaking coach and media trainer, shared an example of the appropriate amount of time to talk in a meeting with six people:

"I would suggest a good measure would be three contributions over an hour-long meeting from each non-leader participant. If anyone is talking five/six/seven times you are over-participating! Allow someone else to weigh in, even if that means an occasional awkward silence. Anything less seems like your voice is just not being represented, and anything over three contributions is too much."

Ultimately, the WAIT method is about taking a second to make sure you're not just talking to hear yourself speak. It helps ensure that you have a clear goal for participating in the conversation and that you're adding value for others. Knowing when and why to say something is the best way to make a positive contribution and avoid shooting yourself in the foot.

Education

Real people share 17 red flags that expose someone trying to appear wiser than they actually are

"Actually referring to oneself as 'smart' in general is often a good indicator too."

low intelligence, low iq, iq lower, signs of low intelligence, not smart, not very smart

A man looks confused.

People who struggle with intellectual functioning, often described as having a low IQ, may also be considered to have low intelligence. Determining low intelligence is not always easy or obvious, so people on Reddit shared their thoughts on the signs that can indicate it.

One observant Redditor shared their insight, writing that a sign of low intelligence is "actually referring to oneself as 'smart' in general is often a good indicator too." The comment is an example of the Dunning–Kruger effect, first described in 1999 by psychologists David Dunning and Justin Kruger, which found that people with lower IQs tend to overestimate their intelligence, while those with higher IQs often underestimate it.


"Those with limited knowledge in a domain suffer a dual burden: Not only do they reach mistaken conclusions and make regrettable errors, but their incompetence robs them of the ability to realize it," the psychologists wrote, according to Psychology Today.

- YouTube www.youtube.com

17 signs of low intelligence, according to Redditors

"When presented with an statement that generalizes something, they will use an anecdote as a counterexample and think that it completely refutes the statement. Example: travelling in an airplane is generally safer than in a car. 'Actually that's not true, I know someone who died in an airplane crash.'" - Traditional_Rub_9828

"Refusal to learn, grow and change your views from evidence provided." - Userdataunavailable

"Confusing 'being loud' with 'being right.' The loudest person in the room is rarely the smartest." - Kernel_Slasher

"Actually referring to oneself as 'smart' in a general is often a good indicator too." - loku_gem

"Believing anything they see on social media." - Fabulous_Ady

"Lack of curiosity. Thinking they know it all." - Disastrous-Sky-8484

- YouTube www.youtube.com

"Further than a lack of curiosity is never asking questions. It was something I heard about gorilla researchers who taught them sign language that in the years of gorilla sign language communications they never had a gorilla ask a question of a human. That simple process of recognizing you don't know/have something you want, understanding someone else likely does know what you want, and asking them actually takes a lot of brain power. Some parrots and exceptionally smart dogs can hit that threshold... And some very cognitively limited humans do not." - MildGenevaSuggestion

"They get annoyed by people who act curious, too. About anything. 'Why do you care?' 'Who cares?' Idk man, it's just interesting. Why shouldn't I care?" - Belle_Juive

"Not realizing that everything has nuances." - SecretHuckleberry720

"Refusing to consider they might be wrong." - Marry_Ennaria

"Not being able to understand or engage with hypotheticals. It is a meme online but that is actually a sign of low intelligence. Individuals with IQs under 90 often struggle with conditional hypotheticals—such as 'How would you feel if you hadn't eaten dinner?'—responding with factual rebuttals like 'But I did eat dinner.'" - Emergency-Resist-730

@baxate_carter

Even more low IQ traits from a year ago

"Severe impairment in metacognition - that is, a persistent inability to recognize one's own errors in thinking, monitor one's own reasoning, or adjust beliefs/behavior even when presented with clear contradictory evidence." - DiamondCalvesFan

"Ironically, Always having an answer. There is a lot of power in saying 'I don't know'." - Loose-Cicada5473, mattacular2001

"People who mock others instead of trying to understand them. Curiosity is usually a sign of intelligence." - cutiepie_00me

"Repeating the same mistakes and blaming everyone else." - Luckypiniece

"Bragging that you haven't read a book since high school." - tiger0204

"One move chess player. This is like an analogy to how some people think and act and vote. A good chess player is thinking 3 or more moves ahead. a bad one is playing one move ahead only. When people say things like 'Why should I pay school taxes if I don't have any kids!?' they are playing one move without thinking ahead. Better schools means a more educated populace means less crimes and more economic opportunity for your area, thus it benefits everyone whether they have kids or not." - ChickenMarsala4500

arthur c. brooks, harvard, psychology, happiness research, bucket list

Harvard researcher Arthur C. Brooks studies what leads to human happiness.

We live in a society that prizes ambition, celebrating goal-setting, and hustle culture as praiseworthy vehicles on the road to success. We also live in a society that associates successfully getting whatever our hearts desire with happiness. The formula we internalize from an early age is that desire + ambition + goal-setting + doing what it takes = a successful, happy life.

But as Harvard University happiness researcher Arthur C. Brooks has found, in his studies as well as his own experience, that happiness doesn't follow that formula. "It took me too long to figure this one out," Brooks told podcast host Tim Ferris, explaining why he uses a "reverse bucket list" to live a happier life.


bucket list, wants, desires, goals, detachment Many people make bucket lists of things they want in life. Giphy

Brooks shared that on his birthday, he would always make a list of his desires, ambitions, and things he wanted to accomplish—a bucket list. But when he was 50, he found his bucket list from when he was 40 and had an epiphany: "I looked at that list from when I was 40, and I'd checked everything off that list. And I was less happy at 50 than I was at 40."

As a social scientist, he recognized that he was doing something wrong and analyzed it.

"This is a neurophysiological problem and a psychological problem all rolled into one handy package," he said. "I was making the mistake of thinking that my satisfaction would come from having more. And the truth of the matter is that lasting and stable satisfaction, which doesn't wear off in a minute, comes when you understand that your satisfaction is your haves divided by your wants…You can increase your satisfaction temporarily and inefficiently by having more, or permanently and securely by wanting less."

Brooks concluded that he needed a "reverse bucket list" that would help him "consciously detach" from his worldly wants and desires by simply writing them down and crossing them off.

"I know that these things are going to occur to me as natural goals," Brooks said, citing human evolutionary psychology. "But I do not want to be owned by them. I want to manage them." He discussed moving those desires from the instinctual limbic system to the conscious pre-frontal cortex by examining each one and saying, "Maybe I get it, maybe I don't," but crossing them off as attachments. "And I'm free…it works," he said.

- YouTube www.youtube.com

"When I write them down, I acknowledge that I have the desire," he explained on X. "When I cross them out, I acknowledge that I will not be attached to this goal."

The idea that attachment itself causes unhappiness is a concept found in many spiritual traditions, but it is most closely associated with Buddhism. Mike Brooks, PhD, explains that humans need healthy attachments, such as an attachment to staying alive and attachments to loved ones, to avoid suffering. But many things to which we are attached are not necessarily healthy, either by degree (over-attachment) or by nature (being attached to things that are impermanent).

"We should strive for flexibility in our attachments because the objects of our attachment are inherently in flux," Brooks writes in Psychology Today. "In this way, we suffer unnecessarily when we don't accept their impermanent nature."

What Arthur C. Brooks suggests that we strive to detach ourselves from our wants and desires because the simplest way to solve the 'haves/wants = happiness' formula is to reduce the denominator. The reverse bucket list, in which you cross off desires before you fulfill them, can help free you from attachment and lead to a happier overall existence.

This article originally appeared last year.

parenting, toddlers, bittersweet , nostalgia, kids, viral tiktok, parenting content, raising kids
via @nickgorman0/TikTok, used with permission

A lighthearted moment turns bittersweet with a painful realization.

Parenting is full of bittersweet moments. Every milestone toward independence—walking, talking, the first day of school—marks the end of something precious and fleeting, a time when parents are their children's entire world. So while these firsts are, of course, joyful, it's completely natural for parents to feel a sense of grief.

One such moment happened recently for Nick Gorman while he was filming his daughter playing in a puddle for the first time.


The now-viral clip, posted to TikTok, seems lighthearted enough. Gorman encourages his little one to splash in the water, and when she does, he gushes, "You know what this means? You're officially a kid. You're no longer a baby."

The phrase clearly hit harder than Gorman thought it would, because in the caption he wrote, "Well that realization hurt."

@nick.gorman8 Didn’t realize what I’d said until I watched the video later on…woof! #kiddos #toddlersoftiktok #aww #kidsoftiktok #dad ♬ These Memories - Hollow Coves

It's a realization that's pretty darn universal, as indicated by the thousands of other parents who chimed in on the TikTok video with their own similarly wistful stories:

"Today I heard my daughter getting into the Pop-Tarts while I was doing the dishes and dried my hands waiting for the inevitable 'daddy will you open this?' And then minutes went by, and silence. Curious, I poked my head around the corner and saw her eating them happily. She saw me and announced that she did it herself. I was so proud. But I still move the box up another shelf because I am not ready to stop helping her."

"My daughter used to call ketchup 'dip dip.' One day I asked if she wanted dip dip and she said 'it's ketchup mom.' My heart broke."

"My daughter used to hide from me when I'd get home from work. Came home expecting some elaborate hiding spot but she was just watching tv."

"One day I realized my babies quit calling me dada, and started saying daddy, and that was hard, but when I realized they had switched from daddy to dad that one had me in tears."

Experts seem to agree that when it comes to navigating these closing chapters, parents should permit themselves to feel whatever conflicting emotions arise and remember that it's a natural part of the process.

It's also important to remember that good things are still on the horizon. Every season brings its own special gifts and cherished memories. Even when kids finally leave the house to start their own adult lives, arguably the most bittersweet transition of all, parents are given the chance to explore other aspects of their identity that may have gone dormant during the more active days of parenthood.

Even Gorman seems to have recognized that his realization isn't entirely painful. In an interview with Newsweek, he shared, "While it's sad she's growing up, and we're already seeing our time with her pass, it's exciting at the same time to see her grow and experience new things—which is why I wanted to become a parent in the first place."

Nobody becomes a parent expecting things to become simpler. But most would argue that the trade-off is beyond worth it. And stories like these can remind parents that they're not alone in whatever feelings they're experiencing.

Health

Researchers tested 6 brands of bottled water against tap water, and there was a clear winner

New technology allowed them to analyze the water in ways they never could before.

water, workout, sweat, towell, woman at gym, bottled water, thirst

A woman drinking bottled water after a workout.

Ever since bottled water became popular in the 1990s, there has been a vigorous debate over whether it's healthier to drink bottled water or tap water. Bottled-water aficionados often claim it's purer than tap water because it's traditionally marketed as being "from the source" or having come from an untouched stream. That has to be cleaner than water that reaches your home after traveling from God-knows-where through city pipes, right?

What many people don't realize is that bottled water isn't regulated as stringently as tap water. Tap water is overseen by the Environmental Protection Agency (EPA), which requires more frequent testing and stricter disinfection standards. Bottled water is regulated by the Food and Drug Administration (FDA) as a food product.


Tap water found to have fewer microplastics than bottled water

A recent study from The Ohio State University (OSU) delivered another big victory for Team Tap, finding that after testing six brands of bottled water against tap water from four water treatment plants, bottled water contained more than three times as many microplastics as tap water. The big problem is that plastic bottles can shed tiny plastic particles, smaller than a speck of dust, into the water when temperatures change, the cap is removed, or the bottle tumbles around in a purse or the back seat of a car.

tap water, kitchen water, boy drinking, thirsty boy, kitchen sink A boy drinking from the kitchen sink.via Canva/Photos

The tests revealed that the amount of microplastics in bottled water ranged from 2.6 to 11.5 million particles per liter, while tap water ranged from 1.6 to 2.6 million particles per liter. In the best-case scenario, tap water contains similar levels of microplastics, but in the worst-case scenario, bottled water contains more than seven times as many.

The researchers were surprised by their findings because nanoplastics are so small that they've been hard to quantify in the past.

"This lack of knowledge primarily reflects limitations in the methods to isolate and analyze the nanoplastics," said Megan Jamison Hart, a PhD candidate at OSU and the study's lead researcher. "In this study, we developed and validated a novel method for isolating MNPs [micro- and nanoplastics], allowing for the determination of their concentrations using scanning electron microscopy and identification using optical photothermal infrared spectroscopy (OPTIR)."

Are microplastics harmful to humans?

Much more research on microplastics is needed to determine their potential harm to humans. Studies have linked microplastics to impaired immune function, increased inflammation, and cellular damage in animals. Researchers believe that larger nanoplastics pass through the digestive tract and are eventually excreted. Smaller nanoplastics, however, may move into human tissues and even enter the brain.

"While we don't really fully understand the human health risks associated with nanoplastic exposure, it's still better to try and mitigate that risk because evidence indicates that they do cause problems, even if we're not fully aware of what those are yet," said Hart.

water bottle, plastic, thirsday woman, woman workout, workout clothes, A woman drinking out of a plastic water bottle. via Canva/Photos

Given that scientists have yet to determine the harm that micro- and nanoplastics can cause in our bodies, they believe it's best to avoid them as much as possible.

"We can make educated choices to try and reduce our daily exposure to these harmful chemicals," said Hart. "For the average person who is thirsty and wants a drink, the best way to do that would be drinking it straight out of the tap rather than grabbing pre-bottled water."

Hart told StudyFinds that the best thing to do is ditch bottled water and instead drink filtered tap water from a reusable metal bottle.

"This has definitely changed my own drinking habits," she said. "I was primarily a tap water drinker before, knowing that disposable bottles were bad for the environment, but this is something I am even more adamant about now, and I swapped my reusable plastic bottle for a reusable metal one."