Dating has changed dramatically. Attraction hasn’t necessarily caught up.

From matchmaking to dating apps, technology has transformed how people meet, assess and choose potential partners. Yet beneath the profiles, photographs and algorithms sits something considerably older: human biology. It is this tension between modern romance and ancient instinct that Swiss songwriter MirrorMouth explores on his latest single, ‘My Genes Are Shouting’.

The track approaches attraction with curiosity rather than certainty, asking whether some of the preferences we experience as entirely personal might have deeper evolutionary origins. After all, humans didn’t suddenly develop attraction when dating apps arrived. The environments changed; the biological machinery didn’t disappear.

That doesn’t mean biology dictates who someone should find attractive—or that attraction can be reduced to genetics. Instead, MirrorMouth is interested in the possibility that evolution has left subtle influences behind, shaping tendencies that can operate beneath conscious awareness.

It’s a surprisingly rich subject for a pop song.

The playful nature of ‘My Genes Are Shouting’ is crucial. MirrorMouth isn’t attempting to turn evolutionary theory into a lecture. Instead, he takes a complex question and makes it conversational, allowing listeners to consider the possibility without being told what conclusion they should reach.

One of the song’s most provocative references concerns female fertility, with the lyric “Peak fertility, around 23.” The line is intended specifically as a reference to a biological concept—not as a statement about someone’s attractiveness, worth or value.

That distinction is important because the song isn’t really about judging people at all. It’s about examining the invisible influences that might sit behind human behaviour.

And perhaps that’s what makes it so relatable. We spend enormous amounts of time analysing compatibility, personality and chemistry, while rarely asking what came before any of those things.

MirrorMouth’s answer isn’t definitive.

It’s a question wrapped in a pop song:

How much of attraction belongs to us… and how much belongs to biology?