Why We Fall in Love, the Chemistry Of Love


Love! That great unknown and longed for! When a person falls in love with another and that love is reciprocated life becomes a more pleasant color, the sensations are more pleasant and those that hurt before, now gives more equal. Reality becomes more beautiful in our eyes and that person who steals our hearts, simply … it ‘s wonderful! Why do we fall in love? What is it that makes your heart beat for one person and not for another?couple

Pure chemistry!

People are chemistry and our brain has a peculiar way of functioning when it falls in love. Science is capable of giving meaning to love, which although less romantic than you imagine, can actually help you understand why you fall in love and how you do it. Love is related to the levels of serotonin that disappears as the brain fills with dopamine when it is with a specific person.

People may feel a certain obsession with people, because because of the rise of that dopamine, the brain feels ‘addicted’ to that person. It requires more your presence because it makes us feel good and we want to feel this way as long as possible.

The segregation of dopamine occurs by survival … because of human evolution, it is inevitable to look for a person to procreate and that the human species can continue to grow. Some think that we only fall in love to have sex and thus have children … Although it does not happen, our most primitive brain is what it wants to achieve. Dopamine makes us happier and also produces phenylethylamine, which is behind sexual attraction … Although desire arises thanks to testosterone and estrogen.

How do you fall in love

When a person falls in love everything starts in the cerebral cortex, then the endocrine system comes into action and there are physical and chemical responses (as we have said above, thanks to the segregation of dopamine in the hypothalamus).

First, a certain physical attraction is felt and then there is an attraction for the person. The infatuation appears almost out of nowhere when it is suspected that there is reciprocity, that is, the other person also feels the same for us.

Falling in love has symptoms, do you want to know them?

  • Sweating
  • More accelerated heart rhythm
  • Desire for physical union
  • Desire for reciprocity
  • Fear of being rejected
  • Thoughts towards the other person repetitive
  • Less concentration
  • Nerves in the presence of the other person
  • Idealization of the other person

Also, when a person falls in love they feel a certain natural euphoria when they are with the other person thanks to phenylethylamine … taking into account the genetics and instinct of procreation and preservation of the human species.

Why do you fall in love

This question has been asked by many poets and artists throughout the history of mankind. One answer tends to be that love between two people arises when there is a certain attraction and the appropriate factors and social circumstances are given so that the passion between the individuals is strong enough to arise.

In other words, it seems that the stars must be aligned so that two people fall in love … but in reality it is not like that! When love is reciprocal it is the most beautiful thing that can happen, although when it is not reciprocated, the pain can be quite great.


Normally, for there to be attraction between two people before falling in love, there must be some factors. These factors are the following:

  • Similarity in beliefs, personality traits and ways of thinking.
  • Closeness, this can be by spending a lot of time talking, being together, living nearby … sharing experiences habitually.
  • Desirable characteristics in the other . This focuses on an external physical appearance that is considered desirable and also, but to a lesser extent, that the personality is also desirable.
  • Mutual love  when the other person feels attracted to you or likes you, that can increase your taste.

Social influence and company

There are also two important factors that influence after the above factors give ‘positive’ between two people:

  • Social influences A potential union that satisfies the general social norms, as well as the acceptance of the potential union within the social network to which it belongs, can contribute to people falling in love. On the contrary, a union that does not satisfy general social norms or that is not accepted by one’s social network can make people fall in love.
  • Needs to be with another person. If a person can satisfy the needs of company, love, sex or procreation, there is a greater possibility that the other person falls in love with him or her.

Privacy and connection

There are other factors that are also necessary so that the love between two people is real and passionate … instead of being more friendship than love in a relationship. These factors are:

  • Excitement and unusualness. Being in an unusual or exciting environment can arouse passion, even if the environment is perceived as dangerous or scary.
  • Specific signs One particular characteristic of the other can cause a particularly strong attraction (for example, parts of your body or facial features).
  • Dependence. The more you want to be in a relationship, the lower your self-esteem and the more likely you are to fall in love.
  • Privacy. Spending time alone with another person can also contribute to a passion development.
  • Mystery. If there is some mystery surrounding the other person and uncertainty about what the other person thinks or feels, asking when the contact will start can also contribute to the passion.

Living experiences together will also make people start to feel different emotions for one another. Love can be unexpected, the chemistry of the brain is not controlled by what can not be controlled by who we fall in love with.

Please rate this