ScienceAugust 20, 2026

sternocleidomastoids

STER-no-KLY-duh-MASS-toydz

Definition

A pair of long, thick muscles running along each side of the neck from the collarbone and sternum to the area behind the ear.

Etymology

The term is derived from Greek words denoting its points of attachment: 'sternon' (breastbone), 'kleis' (key/collarbone), and 'mastoeides' (breast-shaped, referring to the mastoid process behind the ear).

In the news

The article mentions these muscles because proponents of 'voicemaxxing' incorrectly believe that strengthening them through neck crunches will result in a deeper, more attractive voice.

Scientists issue urgent warning over 'voicemaxxing' trend in which men perform 'neck crunches' to deepen their voices - amid fears it can cause permanent damage

Read the full article ↗

Daily Mail

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