About biology, monogamy and much more
Many people wonder why we often enter into monogamous relationships. Why do many couples stay together for many years? There are both biological and social reasons for this.
What happens in the brain?
When we are with someone for a long time, our brain releases hormones that help us to form a deep bond. The most important hormones here are oxytocin and vasopressin. These are often referred to as ‘bonding hormones’.
– Oxytocin: Also known as the “cuddle hormone” 🙂 This hormone is often released when we are physically or emotionally close to our partner – for example when cuddling or during a nice conversation. It gives us a feeling of security and trust.
– Vasopressin: This hormone helps us to build a long-term bond. It reinforces the feeling that we belong to someone.
In Mark Manson’s book Everything is Fcked: A Book About Hope*, he talks about how our minds are constantly searching for meaning and hope. Relationships, especially long-term ones, often give us this kind of stability and purpose in life. They offer us emotional security.
What happens in the brain at the beginning of a relationship
– or even an affair?
Things are different at the beginning of a new relationship or in an affair. Other hormones play a greater role here, especially dopamine.
– Dopamine: This hormone creates a strong feeling of excitement and happiness. It is often referred to as the ‘reward hormone’ because it gives us the feeling that something new or exciting is happening. When we are newly in love or having an affair, our brain releases a lot of dopamine. This is the reason why new relationships often seem so exciting and intense.
The hormone adrenaline also plays a role. It makes us alert and makes our heart beat faster when we are excited or take a risk. In an affair, which is often secret, this thrill can be particularly strong.
Why do infidelities occur?
Simply put, some people have affairs or infidelities because they want to feel that sense of excitement and high from dopamine. In long-term relationships, where oxytocin and vasopressin dominate, this feeling of excitement and passion will naturally diminish. The relationship feels safe and familiar, but not as exciting as it was in the beginning.
In a new relationship with an unknown person, people experience the same “thrill” again that they had at the beginning of a relationship. An affair can bring back this feeling of adventure because the brain releases a lot of dopamine again. But this feeling is often only temporary.
What does evolution have to say about this?
Some scientists say that monogamy is not necessarily “natural” for humans. In the book Sex – The True Story by Christopher Ryan and Cacilda Jetha, it is explained that our early ancestors probably lived in groups where there were multiple sexual partners. This theory calls into question whether we are biologically “programmed” for monogamy.
But this does not mean that monogamy is “wrong” per se. Female Choice explains that women’s sexual choices and behavior have played an important role in evolution. Women often make conscious decisions about who to procreate with based on what works best for them and their family. Monogamous relationships can therefore be a strategy to ensure that their offspring are well cared for.
Conclusion
Although our brains help us to form close bonds and monogamy can give us security, it is important to understand the diversity of human relationships. People are constantly evolving – both biologically and emotionally. It is important that couples talk about this and find ways together to maintain passion and closeness in long-term relationships. This will not always be the case automatically. What you find out together with your partner with PaarGespräch will be your individual relationship model: Relationships are different and what works for one person doesn’t necessarily work for everyone.
Would you also like to talk openly with your partner about your wishes and needs and work on your relationship together?
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All the best from your PaarGespräch team
