The Science Behind Falling in Love: Love ad the Brain

Love is a universal human experience that has long been regarded as one of the most mysterious and powerful emotions across every aspect of our existence. With this complex emotion underlying the brain, neuroscience provides new insights into how love manifests in our brain. By examining and understanding the neural mechanisms involved, the emerging field of neuroscience explores the study of love and the brain, uncovering one of the most discrete areas that drive human connection and feelings.

Early Stages of Love

To fall in love is to feel the release of adrenaline. Beginning with just a simple crush can trigger the hormones that flood our brain, causing the production of physical and emotional responses. Both sweaty palms, racing hearts, flushed cheeks, and the feelings of passion and anxiety are the trigger responses our brain can offspring when falling in love. Feelings are tense and you are helpless when you have fallen. These are the early stages of love.

“And from a neuroscientific viewpoint, we can really say that love blossoms in the brain,” states neuroscientist Stephanie Cacioppo, PhD, author Wired for Love: A Neuroscientist’s Journey Through Romance, Loss, and the Essence of Human Connection (Macmillan, 2022). As much as we think euphoric love can be, it's an undeniable feeling that consumes us in every possible way, and it begins with the brain. The early stages of romance can be described as an intoxicating and infatuating feeling, expressed as deep desire and euphoria. The reasoning behind this sudden lovestruck is the stimulation of the reward system in our brain. The reward system of the brain is like a drug; it can easily be triggered with an addiction. The reward system is summarized as oxytocin, vasopressin, norepinephrine, and especially dopamine. Due to the stimulated reward system built in our brain, the romance we feel with an individual captivates us to feel addicted. The vision we see through them is in “rose-colored glasses”. This intense and thrilling feeling triggered by the reward system in our brain causes us to occupy our thoughts with the person we’re in love with. It’s an undeniable and helpless feeling to be in love, for sure.

Connections defined by neurotransmitters

Your Brain on Love, Meet Mindful

As we delve into the early stages of love, a very primitive part of the brain’s reward system is activated. This sudden activation in the rewards system tells us that romantic love is a drive to basic need. The mesolimbic system (reward system), which is in the midbrain, releases several neurotransmitters of dopamine and norepinephrine. The release of dopamine is caused by experiences of pleasurable stimuli, including falling in love. The release of norepinephrine causes energy levels to rise in abundance and a general sense of excitement. With the combination of the two neurotransmitters; dopamine and norepinephrine, they forge a dynamic “honeymoon phase” effect that is characterized as absolute euphoria. Dopamine is the drive to pursue your love interest with norepinephrine acting like butterflies in your stomach. As dopamine and norepinephrine release, two important hormones intertwine: oxytocin and vasopressin. Oxytocin is a chemical that is released from the brain’s hypothalamus. Oxytocin is sometimes referred to as the “cuddle hormone” to promote bonding and chemical connection. Vasopressin, also released from the brain’s hypothalamus, is dignified to play a role in social bonding. The merging between these two hormones often works together to create defensive aggression as a coping mechanism. To add, another chemical that is released when the reward system of the brain is triggered is serotonin. As we all know, serotonin is a neurotransmitter that is used to regulate and balance emotion levels. Serotonin is a feeling that tends to fluctuate in the early stages of love and it is strong. Many studies have shown that serotonin levels in newly in love people is equivalent to serotonin levels in individuals with obsessive compulsive disorder. This information explains why early romance is known to feel intense. As you fall in love, the brain floods itself with chemicals that create feelings of pleasure, infatuation, and motivation. They combine altogether to foster social connections by reshaping your brain when you are in love. As love is a complex emotion, so are the works of the brain when you are in love.

Connections activated by brain regions

In addition to the romantic and daring feelings of first love, there is to know that love also deactivates the neural pathways that are responsible for making critical assessments on others. Love makes us blind and makes us forget about all the negative ideas of someone we’re in love with. You may question, what are these neural pathways and regions of the brain? Together, they work to infuse the emotions we radiate in love. To begin with, the ventral tegmental is quite an active area seeking an experience of romantic attraction. The VTA is responsible for producing dopamine by seeking social bonding and driving us to pursue the love we long for. The VTA influences our likes, dislikes, addictions, and stress management. It is no wonder why love is identical to such feelings as these. Other regions of the brain that are affected by love include the amygdala, hypothalamus, hippocampus, and prefrontal cortex. Love in the brain is not just simply infatuated with addiction but also help to process these complex emotions. Good thing the amygdala guides us to process these emotions we feel. This is relevant due to the powerful associations made during the early stages of love. Another region of the brain that guide us to confusing emotions with romance is the hypothalamus. This region of the brain aims to focus on regulating our emotions and emotional bonds. It helps orchestrate our body’s response to love including physiological changes of increased heart rate and body temperature. When in love, the hippocampus plays a role in processing our complex emotions and molding them into long-term memories related to those intense feelings. To extend, the hippocampus is sensitive to ideas that induce pleasure,including the idea of love. To include surrounding areas of the brain region, the prefrontal cortex also plays a role when falling in love. This region in the brain is responsible for decision-making and for rational thoughts. When you’re in the spotlight of infatuation; the area of this brain tends to slow down and decrease the negative judgements of the person you’re in love with. Although, the increase in susceptibility takes over, overlooking your significant one’s flaws. When experiencing romantic love, specific brain regions activate and harmonize together to contribute to the reward system in our brain. Brain regions tackle our intense emotions when in love and it is significant to know what their responsibilities are in the presence of romance.

Long-term Attachments

Bilingual Brains Build Stronger Connections, Neuroscience News

There is an evitable change over time from passionate love to compassionate love. As early stages of romance become a passerby, feelings and emotions change over time. It is crucial to know that compassionate love is deep, but incomparable to the early stages of love. In 2011, a study from Stoney Brook University, New York, shares that it is possible to be in love with someone after many years of marriage. To delve deeper, this research included MRI scans on couples who had been in love for many years. They found the same intensity of dopamine as found in the brains of couples who were newly in love. You may wonder, why is this? The passion of romance remains, but the stress component of early love goes away over time. This is caused by the neutralization of serotonin levels and the effects of oxytocin. The interaction between vasopressin and oxytocin work together to maintain romantic love. Love over time lets us see our partner in a way that nobody else can. We begin to understand their emotions and perspective, with the increased in bonding over time. Thomas Sherman, Professor at the School of Medicine, states, “You could say that love begins as a stressor, but then love becomes a buffer against stress.” (Djanpranata, 2024). Though feelings come by and go, long-term attachments are possible, and they continue to thrive for many long-term relationships.

Benefits of Long-term Attachments

Many benefits radiate in eternal love. Longterm love is the foundation of a healthy lifestyle and promising fulfillments. In the brain, long-term love is beneficial as it increases the cognitive area of the brain. This area can be justified as the angular gyrus. This region is associated with complex language functions and the mirror neuron system, an area that enables you to anticipate one’s actions. The angular gyrus contributes to the development of cohesive narrative in one’s romance. The complex language functions participate in one’s romance by facilitating the sharing of thoughts and feelings. With this, the complex language system strengthens deep emotional connections and intimacy between you and your lover. This system fosters mutual connections and a deep understanding in each other’s minds. The mirror neuron system enables empathy and understanding in romance. The responsibility of mirror neurons is to help couples understand each other’s emotions, fostering empathy and strengthening emotional connection between the two. Mirror neurons create a sense of safety and security in relationships. Harmonized as one, the complex language and the mirror neuron system seek to maintain long-term romantic relationships. Language allows love to be maintained with deep emotional connections, whereas the mirror neuron system allows the enhancement of empathy and understanding in love.

The science behind falling in love begins with the brain. It is to no doubt that love is a mysterious phenomenon that cannot be fully understood. Physical and emotional expressions of romance are triggered by a series involving hormones, from the neural pathways located in the brain. With the connections made through romance, complex insights with the neural mechanisms involved are all thanks to the study of neuroscience. If love is a complex feeling to understand, so are the neural mechanisms involved that trigger a wave of responses through our brain. With the help of neuroscience, it is now possible to understand the mysteries of love and the brain, though complexities linger