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Wallerian Degeneration: What Happens After a Nerve Is Injured — and the 1-Millimeter-a-Day Comeback
When a nerve fiber is badly damaged, the part beyond the injury deliberately self-destructs. Then, following hollow guide tubes left behind, the surviving stump regrows about one millimeter a day. This is the biology behind why nerve recovery takes months — and genuinely happens.
By VagusSkool Team
Jul 22, 2026