Science Says *THIS* Is Why You Experience Déjà Vu

You know the feeling — you’re going about your day, walking along, simply talking to someone when BOOM! Out of nowhere, it hits you like lightning — you’ve been here before. You’ve been in this exact same moment and place, or had this exact same conversation with someone… yet something doesn’t quite feel right, leaving you totally confused and wondering, “What the hell just happened?” or even, “Am I in Groundhog Day?”

Though it’s a commonplace occurrence, the phenomenon known as “déjà vu” (check out these Fuller House pics to see what we mean) has never really been explained by science, leaving it open to other interpretation (past lives, anyone?) — until now, that is.

In short? Researchers believe it’s your brain fact-checking itself. If you’re thinking, “huh?” follow along.

In a study of 21 volunteers, which findings were presented at the International Conference on Memory last month, researcher Akira O’Connor at the University of St. Andrews in the UK monitored their brain activity while simultaneously triggering “false memories.”

To do so, she orally gave subjects a list of words that were connected by one main link without saying the linking word — which in this case involved saying, “bed,” “dream,” “night” and “pillow,” being sure to leave out the word sleep.

The subjects confirmed for Akira that they had heard no words beginning with an “s” — yet when they were finally given the word “sleep,” it felt familiar to them, giving them a case of déjà vu.

As they experienced this, their brains recorded activity not in the expected hippocampus area — which controls our memories — but in the frontal lobe of the brain, which is related to things such as decision-making and conflict-resolution.

“There may be some conflict-resolution going on in the brain during déjà vu,” scientist Stefan Köhler told New Scientist. In layman’s terms, that means that the frontal lobes are fact-checking our memories and alerting us to errors. It makes sense, especially when you consider that déjà vu happens less and less frequently as we age — around the time when our memories begin to fade.

While critics challenge that some don’t experience déjà vu at all, O’Connor says that it doesn’t negate his new theory — their memory system may just be more advanced, suggesting that there are no errors to fact-check.

Huh! While we still don’t hate the idea that we once lived a life as a queen (hence why we’re so drawn to Disney movies), we guess we’ll concede that this miiiiiight make more sense.

Do you believe O’Connor’s theory explains déjà vu? Share with us over @BritandCo!

(h/t IFL Science, photos via Getty)

A lot of people pride themselves on being optimists, and TBH, if you canstay positivewith everything that’s going on in the world today, major props to you. For most people who consider themselves the glass-half-full type, it’s a lifestyle. They try to look at everything that comes their way, from relationship troubles to work mistakes, with a positive spin. But a recent study investigated whether optimists still stay more positive than pessimists when things get really tough, and what they found was pretty surprising.


Scientists analyzed nine previous studies to see how both optimists and pessimists brace themselves for receiving important and potentially negative news, like medical test results. They found that even though people who identify as optimists tend to be more positive in general, they too start assuming the worst as the moment of truth about something important nears. It’s easy to understand this instinct, since some people tend to believe that preparing yourself for the worst will ultimately make it less shocking if it happens. On the other hand, some people would rather stay positive whenever possible, since it’s easier to fight off stress and anxiety when you have a sunny outlook. Here, we’ve gathered some of our favorite expert tips for staying optimistic when you’re dealing with some super hard stuff.

How To Stay Positive

1.Learn to reframe negativity. “The trick to positivity is not avoiding pessimism,” says Elaine Taylor-Klaus, a certified professional coach. “It’s really about how quickly you can redirect your focus from negative to positive. Critical thinkers are going to see problems to be solved, but the ability to ‘reframe’ the conversation is the really important skill for people to practice.” She recommends getting into the habit of acknowledging negative thoughts and then asking, “What else is possible here?” This can guide you back into a positive mindset more quickly.

“Bottom line: Negativity happens,” she says. “Positivity is a choice, and the quicker you learn to reframe, the more time you’ll spend in a positive space. Then, over time, the more likely you are to turn directly to a positive interpretation of events.”

2. Ask yourself if this will matter a month or year from now. Sometimes things seem crucial AF in the moment, but might be inconsequential even just a few days after that. Just think about high school drama. “When we can leave the past behind and even know in the present moment that this feeling won’t last, it can help to remind us that time heals and life goes on,” explainsSharon Stokes, life-fulfillment coach.

3.Give back. Volunteering is an amazing way to change your entire perspective, saysLyssa Menard, a clinical health psychologist, founder of Strategies for Changeand assistant professor at Northwestern University’s medical school. “There are many organizations that don’t require an ongoing commitment, so sign up for an event that’s meaningful. Research shows that giving to others is one of the quickest routes toward happiness. While happiness and positivity are different, they’re correlated,” Lyssa says.

4. Role play to be more objective. Playing a little mind trick on yourself can work wonders, says Lori Scherwin of Strategize That, a career coaching service. “We’re often better at helping others than ourselves,” she notes. “Make the situation more objective and less personal to you. For example, consider if it were anyone else in the situation (like your best friend, partner or colleague). How would you see the same ‘problem?’ What advice might you give them to get out of it?” she asks. This will help you shift from being super hard on yourself to more objective, and most likely, more positive.

5. Make changes to things that are within your control. Spending time worrying about something that you can’t change isn’t really worth the effort. Instead, “Focus on areas where you have agency,” suggests Holly Burton, a career coach for women in male-dominated industries. “You may be stuck in a role you don’t love at work, but you could probably work a few extra hours a week and take on a project that interests you. You could also schedule some proactive meetings with your boss to make an action plan to develop the skills you need to make a lateral move,” she says. In most situations, whether they’re career-related or not, it’s possible to take actions to make things better for yourself.

6. Practice radical acceptance. Some professional coaches suggest trying out the idea of radical acceptance, which is basically accepting the things you cannot change, even if they’re not right or you don’t agree with them.

7.Try this gratitude challenge. First, journal about one event each day for seven days that made you feel happy and/or thankful and include the specifics of why it made you feel that way, going deep into the details. Second, send one random thank you email or text to someone each day, either personally or professionally. This message should include what they did and why it’s worthy of the shout out. Detailed gratitude journals are proven to improve your life satisfaction, so try to stick to a gratitude practice, even in the good times!

What do you do when you’re trying to stay optimistic? Have you tried any of these techniques? Tell us about it @BritandCo!

This article has been updated.

The MCU isn't done with the Multiverse just yet. After Kevin Feige announced Robert Downey Jr. would star as Doctor Doom in Avengers: Doomsday at San Diego Comic Con, it appears we'll see another OG Avenger in the movie: Chris Evans! But will he star as Steve Rogers/Captain America or Johnny Storm like he did in Deadpool & Wolverine? (Or Heaven forbid, another Doctor Doom.)

Here's everything we know about Chris Evans' reported return to the MCU in Avengers: Doomsday, coming May 1, 2026.

We could see more than one Captain America in 'Avengers: Doomsday.'

Deadline confirmed that Chris Evans would step back into the Marvel Cinematic Universe on December 9, and their sources also say Anthony Mackie will return as Sam Wilson's version of Captain America. Maybe we'll see another Cap vs. Cap battle like we saw in 2019's Avengers: Endgame?

In addition to Chris Evans and RDJ, we'll reportedly also see the Fantastic Four (Ebon Moss-Bachrach, Pedro Pascal, Vanessa Kirby, and Joseph Quinn), and I'm hoping for confirmation we'll be reunited with Tom Holland's Peter Parker, Iman Vellani's Kamala Khan, and Hailee Steinfeld's Kate Bishop.

Avengers: Doomsday is directed by Joe and Anthony Russo, so I'm sure it'll have the same magic of the old school Marvel movies we know and love!

Marvel Studios

Some fans were not happy when Endgame ended with Steve Rogers returning the Infinity Stones to their respective timelines and staying in the 1940s to begin a life with Peggy (basically opening up a brand new timeline). His entire arc since Captain America: The First Avenger in 2011 had been about his relationship with Bucky Barnes, and fighting to help a Hydra-brainwashed Bucky return to his true self. Ditching his newfound family for Peggy simply feels like a character regression. But it looks like Doomsday could be a step in fixing that.

"I need Steve and Bucky together again," one Instagram user says. Another points out that Chris' involvement could be "a flashback to get people excited, but I hope it’s Captain Hydra. Give me Bucky fighting Captain Hydra!" Bucky vs. Evil Steve and Peter Parker vs. Doctor Doom would be the craziest plot twist of the century (especially if Doom is really an evil Tony Stark variant)!

Here's what Chris Evans has said about returning to Marvel.

Chris Evans has been vocal in the past about needing a really good reason to return to the MCU, which means Avengers: Doomsday must be one heck of a script! "I would never say never, but I'm very protective of it," Chris said on an episode of the The View in 2023 (via Boston.com). "It's a very precious role to me, so it would have to be just right."

Well call me Goldilocks because the cast and crew on Doomsday (and the story, of course) must have been perfect! Stay tuned for the latest news on Chris Evans and the future of the MCU!

Would you want to see Chris Evans (and Steve Rogers) return to the MCU? In addition to Avengers: Doomsday, read up on the 5 New Marvel Movies Worth Watching!

It's fun to learn more about ourselves and to feel understood — that's why we take personality tests so incessantly. And since we live in an age of increased self-awareness, we can apply those tests to so many things, like our Hogwarts house and makeup preferences. Clearly, knowing thyself has taken on a whole new meaning lately, and we love the things that these tests can tell us — but did you ever wonder how your personality might affect your dreams? In a new study, Best Mattress Brand set out to discover whether specific types of people had particular types of dreams. Read on for their fascinating results.

The test explored each component of the Myers-Briggs types, which can be broken down into eight characteristics:

Extraversion or Introversion: This is the way you focus your energy. Extroverts focus on the outside world, and Introverts focus on their inner world.

Sensing or Intuition: This is the way you process information. Sensing individuals focus on the facts, and Intuitive individuals interpret the facts.

Thinking or Feeling: This is the way you make decisions. Thinkers process decisions logically, and Feelers make decisions with context and emotion in mind.

Judging or Perceiving: This is the lens through which you interpret the world. Judgers prefer decisive action, while Perceivers like to keep their options open.

Together, your individual combination of these eight traits creates your personality type. Given these traits as variables, the study surveyed 1,000 people on their Myers Briggs traits and their sleep habits.

As you'd imagine, there were a lot of discrepancies between Introverts and Extroverts. Interestingly enough, Extroverts are 17.7 percent more satisfied with their levels of energy during waking hours than their introverted counterparts. Perhaps it's because of their dream habits: Extroverts also have 8.3 percent fewer nightmares than Introverts. Extroverts also dream about traveling 13.9 percent more often than Introverts do.

What about the content of these dreams? If you're Intuitive, you're 16.8 percent more likely to dream about being killed than Sensers are. ­Apparently, Intuitive individuals' dreams are more violent across the board: They also dream about getting attacked and “punching something with no effect" more often.

There's also a substantial difference between Thinkers and Feelers when it comes to dreams. The more emotional Feelers dream about getting pregnant more often than Thinkers do, and they dream about their friends more often too. Perhaps Thinkers are just thinking too hard; they talk in their sleep almost 10 percent more than Feelers do.

The Judgers and Perceivers have their differences as well; in fact, Perceivers have night terrors 10.2 percent more often than Judgers, probably due to the fact that they experience reality so deeply.

Does your personality type match up with these findings? Let us know @BritandCo.

(Photo via Brit + Co)

This post has been updated.

Aging is inevitable, and with it comes all the signs of aging within our skin. A loss of elasticity can result in more fine lines and wrinkles, a longer time spent outside can result in dark-looking sun spots, and a natural decrease in oil production can result in pesky, pesky dryness. Luckily, there’s a serum for that!

These are the best serums for women in their 30s and 40s to combat signs of aging and foster glowy, youthful skin.

Amazon

Caudalie Vinoperfect Brightening Dark Spot Serum

If dark spots and uneven skin tone have crept into your skin over the years, this serum tackles it all. It's formulated with a vitamin C alternative called viniferine that's 62 times more effective than vitamin C. Plus, it delivers a lot of moisture using olive squalene.

Promising review: "I have used this product before and I love it. It's a little costly, but it works great in eliminating dark spots, if you use it every day. I'm not a person that's big on smells, but this product has a nice light scent. It works great under makeup. I'm on my third bottle and highly recommend it."

Sephora

Dieux Deliverance Antioxidant & Niacinamide Serum

Dieux's Deliverance serum packs a punch against discoloration using antioxidants, peptides, and 4% niacinamide. It goes on super lightweight and soaks in even faster, which is ideal for layering under other skincare goodies like moisturizer and SPF.

Promising review: "Loving this serum so much! It has a very lightweight and milky texture, that melts into the skin effortlessly. I’ve been using the serum for a few weeks and I can notice my fine lines look smoother and my skin overall looks firmer and more even toned! It also doesn’t clog the pores which I love! It has been my go to nighttime serum, the results are just so good!"

Amazon

Murad Retinol Youth Renewal Serum

This youth-boosting serum is loaded with a fast-acting retinoid, a time-release retinol, and a retinol booster to really target fine lines. Not only will your skin look (and appear!) firmer, its tone will even out and be more hydrated with consistent use.

Promising review: "I have been using Murad products for several years. Some of their products are a little pricey but they work for me! Retinol I use every other night and it does not break me out or dry my face. I am in my mid 60's! Can tell a difference much smoother and lines not nearly as noticeable!"

Fig.1

Fig.1 Retinol Night Cream Level 1

Fig.1's commitment to clinically proven skincare is evident in this retinol-boosted serum. It's perfect for treating and improving fine lines and wrinkles and dark spots, plus it's helpful for clearing up acne-prone skin. The 0.15% encapsulated retinol is designed to release slowly, so you can apply it regularly without feeling irritated.

Promising review: "I have sensitive, dry and cystic-acne prone skin. It sounds like exaggerating to say that this product was the most impactful in calming my cystic acne, but this is the only product that resulted in a 80-85% reduction in cystic acne. I started using it once per week for about a month, then every other day for a month, then 5-6 days a week with one or two rest days with only minimal dryness (i increased moisturizing barriers underneath every other day and this quickly resolved). I have also seen overall improved skin texture and fading of acne scarring. Definitely recommend!"

Amazon

L'Oreal Paris Revitalift 0.3% Pure Retinol Night Serum

This nighttime serum includes 0.3% pure retinol, the "optimal concentration" for results. It calms the skin, too, using hyaluronic acid and glycerin to hydrate. SPF is a must with any retinol product, so make sure to slather it on! This product in particular also comes with a small sample size so you can patch-test it for any irritation before applying it.

Promising review: "I have been trialing for a year now the best quality skin items for wrinkles, fine line and skin care. This is an absolute must! It helps decrease fine lines and dry skin. I have spent hundreds of dollars reviewing and buying skin care products over the year to find the right items for a daily skin care routine!"

Amazon

Vichy LiftActiv Vitamin C Serum

Vitamin C is a powerhouse in combatting dullness and dark spots, and this serum is simply loaded with it. The formula is light and thin, so you only need to use a little bit at a time to cover your entire face. It also boasts hyaluronic acid and vitamin E to simultaneously smooth and hydrate the skin!

Promising review: "I love this product! I have used other Vit C serums and this one spreads more easily and does not irritate my face. I like the applicator because not too much comes out at one time so you don't waste any of it. I put about 4 drops in my hands and spread it out on my face. The only thing to be careful about is not to get it close to your eyes because it will burn. Otherwise, it has lightened and evened out my 67 year old skin. Will buy again."

Amazon

The Ordinary Hyaluronic Acid 2% + B5 Serum

Hyaluronic acid should be your go-to if dryness is your main skincare concern. This formula is created with several different molecular weights of hyaluronic acid to deeply penetrate the skin as well as leave a nice, dewy layer on top of it. Use it in conjunction with a good moisturizer, and you'll notice that your skin will be loads more hydrated!

Promising review: "Just purchased another 2 pack of the serum. I have been on a mission to find the best affordable skincare for many years, and so far this is the first hyaluronic serum I've been overjoyed with and purchased again. It does not take a whole lot to get a good coverage and my face ends up feeling soft and smooth all day after applying. Other ones I've tried would not moisturize that well for that long and I felt like I had to use a lot of product to get anywhere near the results I wanted."

Drunk Elephant

Drunk Elephant T.L.C. Framboos Glycolic Night Serum

This gentle exfoliating serum includes both AHAs and BHAs, which help improve the look of pores, blemishes, and fine lines. With aging skin, it's important to opt for chemical exfoliants like this rather than skin-damaging methods of physical exfoliation which can further perpetuate uneven tone and texture and fine lines.

Promising review: "This serum is a staple in my routine. It brightens my skin tone and smooths out any texture issues I might have. It's never irritating. It goes on a bit sticky if applied alone, but give it a minute to sink in and dry and the sticky texture goes away. Great staple acid serum."

Ulta

Pacifica Vegan Collagen Complex Face Serum with Hyaluronic Acid

Since we produce less natural collagen as we age, it can be uber-important to supplement the skin with it in order to boost its overall hydration and retention capabilities. This 100% vegan formula also packs in hyaluronic acid, floral extracts, and Japanese camellia oil to further hydrate and soothe your complexion.

Promising review: "I've been using this serum for a while now and iI can really tell a difference when I sit using it for a bit. I try to stay on top of ordering it so I don't run out! It's so lightweight and absorbs well. I love how firm and even toned my skin looks because of it. I get compliments on my complexion and I know it's because of this serum."

Mutha

Mutha Hyaluronic Serum

This "skin barrier-loving" serum may be notably lightweight and oil-free, but it delivers intense results in terms of hydration. It includes 4 different molecular weights of hyaluronic acid to ensure your skin is hydrated, inside and out. It also features anti-inflammatory aloe vera and botanical extracts and ferments that protect the skin's natural barrier.

Promising review: "I am in my mid-40s and want to do what I can to prevent the signs of aging, so I've been looking for a good Hyaluronic serum. This one by Mutha is exactly what I needed! It is gentle and soothing, absorbs easily with no greasiness, is unscented and not at all irritating to my skin. It works well under makeup and with the rest of my skincare routine. A little goes a long way so one bottle will last a long time. I just wish I had this sooner!"

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It's official: Blue Ivy looks totally grown up now — especially in her gorgeous gold gown at the Mufasa: The Lion Kingpremiere. It honestly feels like just yesterday that Beyoncé announced she was born, and now she's a star in her own right! She celebrated her Disney film debut with her family by her side on the red carpet (and everyone looking as gorgeous as ever).

While Jay-Z was one of the latest celebrities caught in the crosshairs of P. Diddy allegations, it didn't stop mom and dad from showing their unwavering support. The family put on a united front, smiling for the cameras and praising Blue's work on her latest Disney film, further proving that they're in this together. Here's everything we know!

Details about the Mufasa: The Lion King premiere

Beyoncé & Jay-Z Amazing Support Of Blue Ivy's Role In 'Mufasa'

Jesse Grant/Getty Images for Disney

Blue Ivy stars in Mufasa: The Lion King as Kiara with Beyoncé voicing Nala again. The highly anticipated film will show Mufasa's origins from a young cub to the majestic king we've come to know, love, and mourn.

In this cute BTS clip, Beyoncé and Blue are initially shown in separate recording booths while the latter says, "Don't stare at me." It's a typical response all kids eventually give their parents, but it doesn't bother Beyoncé. She simply smiles and says, "I can't help it. You're just too beautiful girl." Still, she offers a bit of reassurance to Blue. "I'mma be right here closing my eyes."

Blue briefly talked about what it feels like to work on a movie by saying, "If I like told my younger self that I was in a movie, I'd like never believe myself."

The star couldn't help but tear up as she continued to watch Blue and said, "Give me a second. I'm still...just can't believe that's my baby." While sitting side by Blue, Beyoncé eventually turns to look at her to let her know she's "so proud of her." Even Rumi, Beyoncé and Jay-Z's youngest daughter, makes a quick appearance!

The Mufasa: The Lion King premiere occurred December 9 with Beyoncé, Jay-Z, and grandma Tina Knowles standing by Blue Ivy's side. They looked stunning on the red carpet as they wore coordinating outfits. Although the ladies seemed to be present and excited, Jay-Z temporarily looked distracted while all of them were standing together (via PEOPLE).

If we had to guess, it may have something to do with the recent allegations connecting he and P. Diddy weighing on his mind. After the accusation went public, Jay-Z penned his own public statement and shared it to Roc Nations' social channels. The most heartbreaking aspect of it is realizing his children will be able to see everything.

"My wife and I will have to sit our children down, one of whom is at the age where her friends will surely see the press and ask questions about the nature of these claims, and explain the cruelty and greed of people," he wrote (via X). Only time will tell how everything pans out, but we hope this doesn't overshadow Blue Ivy's success, nor do we want to see people vilify her or her siblings for alleged misdeeds of Jay-Z.

At the end of the day, we're so proud of Blue for letting her light shine bright despite everything else!

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