This is Explainer, a column that answers questions we all have (or should have). As someone who regularly “cleans” my ear canals with cotton swabs, a question hangs over me basically every day: How ...

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If someone asked me five years ago to locate the forward helix on my body, I can assure you a wild guess would have been my only option. Nowadays, like many others, I know it to be the front rim of ...