Being in love or falling in love has a scientific explanation that comprise of three stages and specific chemicals in the brain.
It begins with lust in which a person experience sexual desire towards opposite sex or other individual. Lust is driven by different hormones such as testosterone for male and estrogen for female. The testosterone, a primary male hormone causes sexual drive and openness as it increases during this stage. Women can also experience sexual drive through the presence of estrogen which also maintains vaginal health, function and physical closeness.
Attraction is the second stage. It is also known as the “honeymoon phase” which has a similarity to the effects of certain drugs or alcohol that leads to constant yearning and thinking about a partner. It is driven by brain chemicals called dopamine, adrenaline and serotonin. Dopamine enhances the release of testosterone and affects the various organs imcluding genitals, the senses and sweat glands. When dopamine is released, it creates impact to mood and emotions leading to feelings of happiness and excitement while adrenaline creates euphoria and energy. Other chemical called serotonin plays a role in maintaining mood balance, appetite, memory, as well as sexual desire and function.
Lastly, the attachment occurs and it is associated with two main chemicals such as oxytocin and vasopressin. This stage is a predominant factor for a long-lasting relationships that creates an overall sense of well-being and security. Oxytocin is commonly known as the “cuddle hormone” which acts as a powerful neurotransmitter in the brain. It is released through any forms of physical contact like hugging, cuddling, kissing and other sexual behaviors. In other words, it creates bond and evokes feelings of calmness, security and satisfaction while the vasopressin creates a strong desire for deeper connection and emotional attachment.