Behavioral scientists have proposed that humans cannot live with just one partner based on an evolutionary point of view. Christopher Ryan and Cacilda Jethá, in their book "Sex at Dawn," wrote that humans are naturally non-monogamous and that our ancestors likely engaged in temporary sexual relationships. They suggest that the modern concept of monogamy is a relatively recent cultural invention and may not be well-suited to human nature. The book also discusses how cultural norms around monogamy and sexual exclusivity can create shame and guilt around sexual desire, leading to sexual dysfunction and dissatisfaction [1].

In his book, “The Molecule of More,” Daniel Lieberman argues that dopamine plays a crucial role in the brain's reward system and can be associated with feelings of pleasure and satisfaction experienced during sexual activity. He suggests that dopamine influences the seeking of new sexual encounters; however, after achieving them, other neurotransmitters and their related neural circuits, such as serotonin, oxytocin, and the endocannabinoid system, drive sexual activity, and the mission of dopamine ends. Then dopamine arises again and motivates us to seek new pleasures.

Lieberman also explores the connection between dopamine and creativity, as well as how an imbalance in dopamine levels can lead to conditions such as schizophrenia. Lieberman discusses that dopamine plays an essential role in driving our desires........

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