Love is a trend today. Young adults are going crazy in love. For someone, love is a beautiful experience, for some guys love is just time pass and for some love is self-fulfillment. Whatever it may be, love is only a physiological response of the body.

Types of love depend on types of chemicals your brain secreting. There are so many changes going on your brain and body when you fall in love.

What is Love

Love is a complex set of emotions, behaviors, and beliefs associated with chemical changes result in strong feelings of affection and addiction. It is an intense feeling and craves for someone and something.

Physiology of Love | What happens to your body when you Fall in Love

According to neuroscientist when you fall in love your brain releases some of the neurotransmitters and some chemicals. These are very much addictive like drug abuse and gives a reward like felling to the brain. These reward feelings are very strong that you always want to crave it.

Early-stage in Love

When we are in the very first stage of love, there are two hormones comes into play

Dopamine makes loves pleasurable and drives our brain crazy. Brain secrete dopamine when we are with our loved one or when we think about the loved one, it gives an experience like euphoria (a feeling or state of intense excitement and happiness). This is acts like a drug, which tends us to more attached to our loved one because it increases the secretion of dopamine(People usually repeat the behavior which releases dopamine). Dopamine also stimulates testosterone and estrogen, These two are sex hormones which increase libido (Desire for sexual activity).

Serotonin levels dramatically decrease in the first stage of love, which makes a person obsessed with his/her loved one. The researcher said after six months of love our serotonin level hit the same level as someone with OCD (obsessive-compulsive disorder). Normally serotonin helps us with sleep and digest when serotonin level drops we can’t able to sleep properly and our appetite decreases.

High level of dopamine helps in secretion of Nonadrenaline and cortisol, These are two hormones which also releases in response to stress. It means love has the same feeling as stress, it includes increased heart rate, sweating, decreases appetite, insomnia(Problem in falling asleep), etc. Now I got it why we can’t eat and sleep in love(It’s only because of neurotransmitters).

A later stage in Love(Long term love)

In this stage, oxytocin comes into play. Oxytocin is the hormone which secretes during childbirth which beliefs increase the bond between mother and child.

Over a period of time our craziness and obsession decrease due to a decrease in the level of dopamine. it does not mean that love decreases, it mean that mind adopting it in another way and we are mature now.

Oxytocin release in the brain during physical contact, sex and during orgasm. Increase the level of oxytocin in the brain helps in strong bonding between lovers(Strengthen relationship). High level of oxytocin releases endorphins which make feel safe when you are with your loved one and gives stability to the relationship.

Now you can make your future plan with your loved one Because in this stage you feel settled, contentment, and tranquility. The reason behind pain, depression, and other heartbreaking emotions that you feel when you departed from your loved one is Oxytocin. That’s why people say that It’s difficult to forget that person with whom you slept.

Psychologist says despite our deep and strong love, the amount and the type of neurotransmitters our brain releases the brain able to forget it in 21days. (No matter how strong and deep your emotion is, our brain takes 21 days to forget it) it means after 21 days brain adapts to the situation and you are getting used to it.

What is the difference between love, attraction, and lust

I am mentioning the hormones which play the main role in these 3 stages, you read the above passages carefully to know the behavior of a person.

Love(Attachment) – Oxytocin & Vasopressin

Attraction – Dopamine, Serotonin, Non-adrenaline (Non-epinephrine)

Lust(Strong sexual desire) – Testosterone & Estrogen

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Biswa Prakash

Hi, I am Biswa Prakash Swain, a Public Health expert and author of this Article. I have Done BSc in Nursing and Masters in Public Health (Epidemiology), Now Preparing for Ph.D. in Epidemiology and Clinical Research. I have more than 7 years of experience in Healthcare sectors like Hospitals and almost 4 years of experience in the Public health field and Clinical research.


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