Love is one of the most complex emotions we experience, yet it’s often confused with mere liking. While liking someone brings positive thoughts and enjoyment of their company, love goes deeper. In addition to those feelings, love also adds a profound sense of warmth, care, and emotional connection. But is love purely emotional, or could our genetics play a role in shaping who we fall for? On this Valentine’s Day, Let’s dive into the science behind the genetics of love.
Is love emotional or genetic? The ongoing scientific debate
Although most of us would be inclined to believe that love is emotional, it is a complex emotion involving biology and genetics. Our genetic makeup combined with our emotional experiences influences love. Moreover, as we all know, our body produces certain hormones when we are happy or when we are in love—like dopamine and oxytocin. This shows the complex interplay between our emotions and biological hormones. They contribute to feelings of bonding and attachment.
Genetics and love- Scientific evidence
Did you know that an interesting article published in 2023, mentions love and bonding are influenced by our genes and these are backed by genetic studies? Fascinating research on rodents suggests the crucial role of two hormonal receptors- oxytocin and vasopressin on monogamy. It is observed that certain gene variants affect relationship stability, intensity, and empathy in a relationship. While your genes may not be able to determine the success of your relationship, it could impact your relationship.
Role of genetics in attraction
If you have ever studied insects, you might have heard the term pheromones. They are chemical signals that help in attraction. They can subconsciously influence how they behave and perceive others within the same species. These pheromones act as cues that will be detected by the olfactory systems of their mates, potentially impacting mate selection. It is worthwhile to note that the exact mechanism is still being researched.
Having seen the effect of pheromones in insects and their attraction, it is worth investigating the exact role of love hormones like oxytocin and dopamine in humans at a deeper level and see if they have an influence on us too.
MHC genes and attraction
If you are an immunologist, I’m sure you would know that the Major Histo Compatibility Complex (MHC) subconsciously determines our mate attraction. People with dissimilar MHC genes tend to be attracted to each other. They mainly act through body odor cues. In addition to making love, this also helps maintain genetic diversity in the offspring and helps enhance your immune system. This way, your genes can determine the chemistry between two people!
Your genetic makeup could impact partner preferences and mate selection.
Our genetic makeup plays a significant role in shaping partner preferences and mate selection. We may not consciously know this though. For instance, the gene DRD4, associated with dopamine is linked to novelty-seeking behavior. People with a certain variant of this gene may look for short-term relationships while a certain other variant may look for long-term stable relationships. So, you see, it is all in your genes.
Similarly, yet another gene AVPR1A gene, which regulates vasopressin, has been linked to monogamous tendencies in men. Variations in OXTR genes can even determine how empathetic you will be.
Take home message
Genetics plays a subtle yet significant role in how we experience and express love. Variations in genes linked to neurotransmitters like oxytocin, vasopressin, dopamine, and serotonin influence our ability to bond, trust, and feel passion. Some genes affect emotional intensity, empathy, and even relationship stability, shaping the way we connect with others. While love is often seen as an emotional or cultural phenomenon, science suggests that biology also plays a key part in who we choose as partners and how we navigate relationships.
But can we ever truly separate the biological from the emotional when it comes to love?
Happy reading and keep loving!
Very informative. Never knew about the role of MHC in mate selection.
Lovely read, thanks for sharing.