Hormonal changes when falling in love

@article{Marazziti2004HormonalCW,
  title={Hormonal changes when falling in love},
  author={Donatella Marazziti and D. Canale},
  journal={Psychoneuroendocrinology},
  year={2004},
  volume={29},
  pages={931-936}
}

How do we love? Romantic love style in men is related to lower testosterone levels.

The results pointed out that low testosterone concentrations are associated with higher score for Eros, Ludus, Pragma, Mania love style and no significant association was proved for other tested parameters of androgenicity and love style after correction was applied.

Prolactin secretory rhythm in women: immediate and long-term alterations after sexual contact.

A long-term change in the PRL secretory rhythm after sexual intercourse with orgasm in females is demonstrated, suggesting memory effects, and it is hypothesized that the additionally secreted PRL could be beneficial for decidualization and implantation.

Testosterone and Sexual Desire in Healthy Women and Men

Sexual desire is typically higher in men than in women, with testosterone (T) thought to account for this difference as well as within-sex variation in desire in both women and men. However, few

Emotional states of love moderate the association between catecholamines and female sexual responses in the laboratory.

It is feasible that, when women are seeking a partner (Lust), norepinephrine and dopamine may facilitate attention toward sexually relevant stimuli.

The Science of Love: State of the Art.

It is proposed that the early stage of love, generally called romantic love, is the result of the activation of the brain limbic structures regulating fear/anxiety reactions leading to changes of major neurotransmitters, such as increased monoamine levels and decreased serotonin concentrations.

Is Testosterone a Food for the Brain?

Oxytocin and social motivation

Current Evidence of the Monoaminergic Regulation of Romantic Love and Relationship

Romantic love is vulnerable for secondary effect, such as drugs which modulate the dopamine and serotonin, in human, and is also impacted by the polymorphism of monoamine receptors.
...

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