Two chemicals Dopamine, Norepinephrine pleasure chemicals produce bliss feeling

LOVE – the chemicals racing internally

6:15 AM, 13th February 2014
Dopamine, Norepinephrine pleasure chemicals

SINGAPORE: Scientists say there is increase in levels of hormones neutrophins and dopamine when cupid strikes. When couples fall in love, outwardly they experience dizziness, flushed face, sweaty palms and most prominent of all a wildly beating heart. But, internally, the feeling of love is due to chemicals racing around the brain and body. The feelings, researchers found are due to dopamine, norepinephrine and phenylethylamine that human beings release.

Dopamine

Dopamine is thought to be the “pleasure chemical,” producing a feeling of bliss. It is a neurochemical that is getting released by the brain when we feel good, for instance, by the influence of a good food or reading a fascinating book. It also makes people more talkative and excitable. It affects brain processes that control emotional response, movement, ability to express pleasure, but also pain. Arvid Carlsson was awarded the 2000 Nobel Prize in Physiology or Medicine for showing that dopamine is not just a precursor of norepinephrine but a neurotransmitter.

Norepinephrine

Norepinephrine is similar to adrenaline and produces the racing heart and excitement. Norepinephrine performs its actions on the target cells by binding to and activating its adrenergic receptors. The target cell expression of different types of receptors determines the ultimate cellular effect, and thus norepinephrine has different actions on different cell types. The main targets of the norepinephrine system to ignite are receptors in spinal cord, thalamus, phypothalamus, and neocortex. 

Together these two chemicals produce elation, intense energy, sleeplessness, craving, loss of appetite and focused attention, discovered Helen Fisher, anthropologist at Rutgers University. “The human body releases the cocktail of love rapture only when certain conditions are met. And men more readily produce it than women, because of their more visual nature,” she added.

Moreover, couples should not worry when the initial racing of the heart is reduced with time. Scientists have discovered that hormonal changes lead to such the switch from lust to cuddles. Also when couples move to a stable phase of the relationship, new set of hormones take over.

A team from the University of Pisa in Italy found the bodily chemistry which makes people sexually attractive to new partners lasts, at most, two years. Furthermore, scientists found that the lust molecule was replaced by the so-called “cuddle hormone” - oxytocin - in couples who had been together for several years.

Thus, over a period of time, love between couples is not lost, it is just replaced by other hormones.

 

© Worldofchemicals Media 

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