Odor subtly guides our romantic instincts in how we experience romantic attraction. We usually credit visuals or common ground for attraction, our nose is directly linked to passion and desire. When we are drawn to someone, it’s not always clear why—until we catch their scent and feel an inexplicable pull. The olfactory nerves communicate directly with the brain’s emotional hub, which controls longing, nostalgia, women's perfumes and sexual drive.

We naturally produce biological scent cues that signal immune strength and evolutionary suitability. Evidence suggests we’re subconsciously drawn to smells that indicate genetic diversity. This points to nature’s strategy for stronger, more resilient children. That’s why an unfamiliar scent can feel strangely right.

Emotional associations deeply influence our olfactory likes and dislikes.