@[email protected] to Ask ScienceEnglish • 1 year agoWhy does my arm hair know when to stop (re)growing but my "head" hair or beard don't know?message-square24fedilinkarrow-up1117arrow-down14
arrow-up1113arrow-down1message-squareWhy does my arm hair know when to stop (re)growing but my "head" hair or beard don't know?@[email protected] to Ask ScienceEnglish • 1 year agomessage-square24fedilink
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