I dig science. A big part of the reason why is because I really enjoy researching the “whys” of things. While my father always liked that about me, my mother oftentimes had something slick to say about it (that’s another message for another time, chile). To me, it’s whatever. For better or for worse, I’m simply not someone who accepts that the sky is blue “just because” — put it on my daddy’s DNA, I guess; with no apologies in place, I almost always want to know why something is the way that it is.
And since I spend so much of my time working with couples and writing on relationships, I’m sure no one is shocked that I’ve done my due diligence when it comes to figuring out what is really going on in the minds of humans whenever they are hyped about being in love. While on the surface level, it might seem like I’m being cynical, I’m actually not. It’s more about…well, again, I’ve been working with couples and writing about relationships for so long at this point that I think it’s important for folks to know the difference between an “emotional surge” and a truly wise love decision — and being aware of the role that the brain plays when we think that we’re in love with someone? That can help to bring some perspective and clarity into all of this.
So, whether you’re in something new and you’re currently on cloud nine, you’ve been in something for a while now and you’re wondering if you’ve “lost that loving feeling” or if you’re borderline on the verge of self-sabotage or, you’re like me, and you simply like to know random information just because — I’ve got 10 things that might be of interest to you as far as what science says love can literally do to you on the mental tip.
It’s fascinating stuff, indeed.
1. Dopamine Gets Activated
It’s pretty interesting thatdopamine is a type of neurotransmitter that plays a significant role in things like how you are able to experience pleasure or create memories because both of those are quite relevant when you’re in love with someone. Well, according to science, when you feel like you truly love an individual, dopamine gets activated on a whole ‘nother level to the point where you not only feel euphoric but,it’s at the level of what alcohol or a cocaine high can produce (have mercy!) I’m not exaggerating, either.
In fact, Medical News Today once published an article entitled, “Falling In Love Hits The Brain Like Cocaine Does.” Hmm…makes you wonder if some people run up outta there marriages, not because there’s really anything “wrong”; it’s just that they have crashed from their “cocaine high” and no one prepared them for how to handle it (get into premarital counseling, engaged folks; it makes all the difference in the world!). Also,as far as dopamine goes, when men are “falling” for a woman, it’s dopamine and vasopressin that increase, while, for women, it’s dopamine and oxytocin. During sex, vasopressin drops in men, while oxytocin increases when a woman climaxes. The more you know.2. Euphoria Increases
Let’s go a little bit deeper into the whole euphoria thing. At the end of the day, euphoria is about intensity. I mean, a part of the reason whythe series Euphoria has been so popular (and jarring) is that it showshow drug abuse can put people into a euphoric state — at first in a pleasurable way and eventually on a devastating level. When it comes to love, some experts say that three stages transpire when you feel like you’re in a love-related euphoric state:arousal, attraction, and attachment. And you know what? If you aren’t intentional about doing what Ben Franklin once said (“If passion drives you, let reason hold the reins.”), you could find yourself being on a roller coaster of emotions without having a relationship that consists of much stability. Yeah, euphoria increasing can be problematic as hell if you don’t get all of what comes with that.
3. Oxytocin Surges
When it comes to the articles that I’ve written on love, sex, and relationships on this platform, I don’t know if there’sany hormone that I’ve shouted out more than oxytocin. That’s because there are countless amounts of intel supporting the fact thatit bonds people through things like hand-holding, cuddling, kissing, and definitely sex. That’s whysome experts say that oxytocin can cause people to become “single-minded” about a person, it cancultivate feelings of trust, and it can literallycreate physiological changes that cause you to seek out your love interest.
This is a part of the reason why, when people declare that they are “in love” after say, a one-night stand, my mind immediately thinks, “Eh. Sounds more like an oxytocin surge.” You don’t know them well enough to love them; you can “love” how they make you feel, though. It’s essential to know the difference.
4. Fear Decreases
Now, this is an interesting one. Something else that science says happens when people are in love is the neural pathway that is associated with things like fear and judgment. It actually deactivates itself (chile…CHILE). Yep, some studies reveal that the part of your brain that encourages you to make “critical assessments” of individuals. When you feel like you love them, that shuts down. As a direct result, in walks the rose-colored glasses, and out goes the red flags. And that’s why, when I recently read that a particular actor didn’t heed some warnings from her friends regarding her new relationship, I literally shook my damn head.
When you’re all in love, especially in the beginning stages, having folks around who don’t feel the same ways about the person as you do can actually help you out in the long run, so long as they are good friends with a solid track record, they are going to notice some things that your neural pathway is keeping you from paying close attention to. Yeah, y’all be careful out there.
5. Your Prefrontal Cortex Slows Down
Speaking of desensitized senses, something else that transpires when you’re caught up in someone isyour prefrontal cortex becomes sluggish. Why is this problematic? Well, that’s where the logical part of your brain is housed. This means that when you love someone, you may not be the best at making sound and practical decisions. Although I don’t agree with an article that said this means that love is illogical (love is sound, sane, and stable; it’s folks who jack relationships up…not love), I do think all of this is a reminder that you must rely on more than just how someone makes you feel when you’re trying to decide who to build a life with. Moving on.
6. Your Hypothalamus Revs Up Your Sex Hormones
I don’t know about y’all, but I don’t know too many people who aren’t attracted to the object of their love and affection. And so, when you do fall in love, something else that happens isthe part of your brain known as the hypothalamus stimulates your ovaries while it also stimulates your man’s testicles — and that is what makes you feel an overwhelming feeling of desire (i.e., lust) for your partner.
7. Your Brain’s “Reward Circuit” Lights All the Way Up
Speaking of longing for your partner, three parts of your brain — the amygdala, the hippocampus, and the prefrontal cortex — are known as its “reward circuit,” and whenever you even speak about your bae, this is the part of your brain that lights up like a Christmas tree. Something that’s really interesting about this particular point is, that while this is happening, your serotonin levels typically drop.
Why does this matter? Well, serotonin helps to keep your anxiety levels in balance, and it also helps you to regulate your appetite(s). This would automatically cause me to believe that people who struggle with love addiction probably have a low level of serotonin operating in their system.
Oh, speaking of serotonin, although you may never think to get your hormone levels checked strictly to learn more about how you’re acting/reacting in your romantic relationship,I also found it interesting that people who have more dopamine in their system tend to take more risks when it comes to love while those who have more serotonin are usually far more cautious. Meaning, that how you are in your relationship(s) may not be just about your personality; your hormone levels tend to have a say as well.
8. Your Anterior Cingulate Cortex May Make You Obsessive
Your anterior cingulate cortex is the part of your brain that’s associated with things likemotivation and action. Anyway, since overactivity in this part of the brain is oftentimes linked to things like obsessive-compulsive disorder,some researchers believe that the reason why some people seem to think obsessively about their partner, almost to the point of obsession, if they don’t stay on top of it, is because of how their brain reacts to their attachment to their partner.For the record, this is also the part of your brain that literally lights up whenever you see your partner, too.
9. Vagus Nerves “Sync Up”
Your vagus nerves are a part of your nervous system that starts at your brain and runs through your digestive tract. This makes them an integral part of things like your immunity, your speech, your moods, and your heart rate. As far as your brain goes, some studies reveal that after a couple has been together for a longer period of time, it’s not uncommon for their vagus nerves to “sync up” in the sense of having similar facial expressions and hand gestures being and even their hearts starting to beat at the same pace.As a direct result, the syncing makes it easier for both individuals to make sacrifices for one another in order to remain together. Share that with your grandparents the next time you see them. #wink
10. If You’ve Been Together for a While, Your Angular Gyrus Becomes Stronger
Speaking of longevity, another perk that comes with couples who choose to go the distance is the part of their brain known astheir angular gyrus becomes more active. What’s actually sweet about this is that not only is this what makes it easier for you to learn complex languages, but you can also start to anticipate your partner’s actions with it too. As a direct result, science says that many couples can finish each other’s sentences — and it’s all because their angular gyrus has gotten stronger as a result of them staying committed.
____
After reading all of this, how could anyone possibly look at being in love casually? There are far too many intricate parts at work — yes, literally. Yeah, when Rihanna sang about having “love on the brain,” she said more than a mouthful…whether she realized it or not.
And if you declare that you are in love, make sure to factor in what your brain is going through. Then choose wisely. Even your brain and mental health depend on it. Also…literally.
Let’s make things inbox official! Sign up for the xoNecole newsletter for love, wellness, career, and exclusive content delivered straight to your inbox.
Featured image by FG Trade/Getty Images
RELATED
Here are some of my favorite takeaways from three standout panels featuring Jordan Chiles, Marsai Martin, and Kandi Burruss.
Leveling Up Your A-Game with Jordan Chiles, Morgan Shaw Parker, Chelsea Fishman, Laura Correnti, and Tabitha Turner-Wilkins
Jordan Chiles
Paras Griffin/ Getty Images for Power Play
Olympic gymnast Jordan may have medals and magazine covers to her name, but her mindset is refreshingly grounded. “The day I finally feel pressure,” she said, “will be the day I know there’s still more for me to learn.” For her, joy—not pressure—is the fuel. Her confidence isn’t performative; it’s rooted in family, self-worth, and authenticity.
“Everything I’ve done in my career—tattoos, long nails, rocking my crew at the Olympics—that’s all me. It’s not because someone told me to do it. It’s because I felt confident doing it. And that’s where my ambition comes from: being my authentic self.”
For Morgan Shaw Parker, President & COO of the Atlanta Dream, the conversation around pressure went even deeper. “Legacy work” is how she described her mission—navigating male-dominated spaces, sometimes pregnant and pumping on NFL team planes. “After COVID and George Floyd,” she shared, “it became clear to me: vulnerability is power. You don’t have to show up perfect to lead.”
Chelsea Fishman, founder of Atlanta's first bar dedicated to women’s sports, Jolene Jolene, shared how the haters (especially the Reddit kind) were her confirmation: “All those comments saying it would fail—those were the signs that I was doing something right.” She’s hosted 25+ watch parties already and is building the very community they said would never come.
This panel also touched on ambition, authenticity, and owning your power—both in sneakers and in suits. One of the best mic-drop moments came when the moderator flipped the question: “What if we stopped making ‘power’ a bad word for women?” A nod-worthy reminder that we’re not here to play small.
Making Your Voice Heard with Marsai Martin, Carol Martin, Miss Milan, and Heather McMahan
Marsai Martin
Paras Griffin/ Getty Images for Power Play
This panel was a masterclass in staying grounded while growing up—or glamming up—on the global stage. Actress and producer Marsai talked about what it’s like to show up in high-pressure moments when your confidence is low but the world is still watching. From red carpets to long shoot days, she reminded us that even when you’re not at 100%, you still find a way to push through.
“There have been days where I wasn’t feeling the best, but I still had to show up on this carpet. Or it was that time of the month, but I still had to go on set. I just didn’t feel as confident—but it’s about how you take care of yourself in those moments and still keep pushing.”
Her mom and business partner Carol Martin dropped gems about motherhood and mentorship: “It’s like teaching your kid to ride a bike over and over again. Now the bike is a movie or a brand.” That balance between guiding and letting go? Not easy—but essential when you’re raising a mogul and running a company.
“There have been days where I wasn’t feeling the best, but I still had to show up on this carpet. Or it was that time of the month, but I still had to go on set. I just didn’t feel as confident—but it’s about how you take care of yourself in those moments and still keep pushing.”
Miss Milan, Grammy Award-winning DJ and Doechii’s right-hand woman, lit the crowd up with her no-nonsense energy. “I built my own table,” she said. “When you build it, they can’t tell you you can’t sit.” From journaling her dreams to manifesting Grammys, her story is one of resilience and intention—and a whole lot of faith in her own vision.
This panel didn’t shy away from hard truths either: the sadness that can come with success, the fear of fading relevance, the criticism that hits differently when it’s personal. But Marsai said it best: know your why. And let it evolve with you.
The Cost of Starting Your Own Business with Kandi Burruss and Nikki Ogunnaike
Kandi Burruss
Carol Lee Rose/ Getty Images for Marie ClaireKandi doesn’t sugarcoat the grind. From chart-topping songwriter to multi-business entrepreneur, she’s built her empire one risk—and one reinvention—at a time.
“Fear equals failure. If you don’t even try, you’ve failed automatically —and you did it to yourself. I’d rather take a risk and lose money than play it safe and never know what could’ve happened.”
She broke down the real costs of entrepreneurship: money, time, and emotional bandwidth. “You think you’re going to work less when you work for yourself?” she laughed. “You’re going to work more.” For Kandi, mommy guilt and financial setbacks are part of the package—but so is the satisfaction of seeing an idea through.
She opened up about scaling back on her clothing store and temporarily closing the original Old Lady Gang location. “It felt like failure,” she admitted, “but sometimes you have to step back to make things better.” Still, she’s not one to quit. She just pivots—with precision.
One of her most memorable reflections? How her music career hiccup led her to songwriting—ultimately writing the mega-hit “No Scrubs.” That song became the key to a new lane and legacy. “You may think you’re working on one dream,” she said, “but it could open the door to another.”
Also? Kandi wants you to stop emailing her from a Gmail. “You’re doing million-dollar business on a bootleg budget,” she joked. “Invest in yourself. Start with a domain name!”
The Marie Claire Power Play Summit was a powerful reminder that ambition, authenticity, and vulnerability aren’t separate traits—they work in tandem. Whether you’re building a bar, a brand, or a business from scratch, the key is to stay rooted in your voice, your story, and your why.
And if you need a sign to go for it? Consider this your green light.
Let’s make things inbox official! Sign up for the xoNecole newsletter for love, wellness, career, and exclusive content delivered straight to your inbox.
Feature image by Paras Griffin/ Getty Images for Power Play