Biology of Love

4. The stress hormone, often elevated in the early stages of attraction, contributing to the “butterflies” feeling
5. A fatty-acid neurotransmitter known as the “bliss molecule” that enhances mood and pleasure, sometimes linked to the euphoria of love
6. Hormone-like substance produced at the early stages of attraction that provokes the dizzy sensation some people feel when they're falling in love. It triggers the release of norepinephrin and dopamine
8. Regulation and facilitating of mating effort by promoting male-male competition and also mate-seeking behavior
10. Released after intimacy; it promotes relaxation and bonding, strengthening emotional connections after physical closeness
12. The “sleep hormone,”; it promotes relaxation and restful cuddles, helping couples wind down and feel close at the end of the day
13. Involved in long-term commitment and pair-bonding, particularly in males
14. Natural painkillers that create feelings of comfort, security, and well-being in long-term relationships

1. Known as the "love hormone," it plays a key role in bonding, trust, and attachment, especially in romantic and parental relationships
2. A specific group of endorphins that act as natural analgesics; fostering a sense of physical comfort, often associated with shared joy and affectionate moments
3. Contributes to excitement, increased heart rate, and the energy rush associated with infatuation
7. Affects mood and emotional regulation; in early stages of love, serotonin levels can actually decrease, leading to obsessive thinking about a partner
9. Influences sexual receptivity and attraction, playing a role in emotional bonding as well
11. Central to the brain’s reward system, it drives feelings of pleasure, motivation, and the euphoria of new love