IdiomBody & SensesFrench

Se faire des cheveux blancs

Meaning: To worry oneself sick.

Literally: To make oneself white hairs

Example: “Arrête de te faire des cheveux blancs pour ton examen, tu l'as bien préparé.” — Stop worrying yourself sick about your exam; you prepared well for it.

English equivalent: To lose sleep over something

Other ways to say this

Origin: From the old belief that acute distress turns the hair white, occasionally reported of people after a shock. French keeps several variants of the same idea, including se faire du mauvais sang.

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