However, the title was changed to Física y química, a phrase which was inspired by a famous statement by the Spanish Physician Severo Ochoa, who said textually that "Love is physics and chemistry".

As usual, Sabina teamed up with his friends and longtime producers, Pancho Varona and Antonio García de Diego, who had collaborated on some of his previous releases.

The protagonist fell in love with the waitress of a bar but one year later, when he returns to the same city, the main character discovers that everything that he appreciated had disappeared.

The second song of the tracklist, "Conductores suicidas" (Suicide drivers), which shows a more rock sound, is about the descent to the world of addictions and excesses of an unspecified popular Spanish singer in the late 1980s and early 1990s.

The song not only reflects Sabina's admiration for Almodovar's movies, but also makes chained references to the titles of those films, such as Dark Habits, Tie Me Up!

[2] Another song, the third maxi single extracted from this album, "Todos menos tú" (Everyone but you), describes with detail the vibrant nightlife of Madrid and the varied types of people that one can see in the Spanish capital city, from "That kind of hairdressers who are known as stylists" to "lascivious divorced women with Madonna styled hair".

The sixth and last maxi single of this album released in 1993 was the ending track, "Pastillas para no soñar" (Pills to not to dream), an optimistic song in which the audience is invited to live freely, without worries, regardless of what others say.