Learn Spanish (Latin America): Apúrate, que mientras más esperas, más rápido se enfría. - Hurry up, because the more you wait, the faster it gets cold.

In colloquial Spanish, an unstressed que is frequently used to mean porque (because) when introducing a quick explanation or cause. This is especially common right after an imperative command like apúrate (hurry up), as it makes conversational speech flow much faster.

Why does the sentence use mientras más instead of cuanto más?

To express 'the more X, the more Y' in Spanish, you use a correlative structure. While cuanto más is the standard textbook form, mientras más is extremely common in everyday Latin American Spanish. You might also hear entre más in some regions to mean the exact same thing.

Why is there a se in se enfría?

The verb used here is the pronominal enfriarse, which indicates a change of state (to get cold or cool down by itself). Without the pronoun se, the verb enfriar means to actively make something else cold, like putting a drink in a freezer.

Why does the command apúrate have a written accent mark?

When you attach an object pronoun like te to the end of an affirmative command (apura), the natural spoken stress of the verb stays exactly where it was. We add a written accent mark on that stressed vowel to ensure the pronunciation rules are preserved after adding the extra syllable.