Observatoire des droits humains (anglais seulement)

Why do nose and ear hairs become longer and thicker as we age?

(Version anglaise seulement)

par Christian Moro, Associate Professor of Science & Medicine, Bond University
Charlotte Phelps, Senior Teaching Fellow in Medicine, Bond University

Growing older often brings unexpected grooming challenges. This is particularly apparent when some areas that, when young, we could otherwise ignore start to develop hair.

This includes our nose and ears, where hair grows thicker and longer as we age. But why do hairs in these areas act like this?

The answer predominantly lies in our sex hormones.

Two types of hair

There are two types of hair that grows across our bodies.

Vellus hair is fine and colourless. This hair (also called “peach…

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