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People have been cleaning their ears with cotton swabs for years. What other tools are being inadvertently used wrong? (feddit.nl)

submitted 9 months ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 9 months ago* (last edited 9 months ago) (1 children)

Sweaty hands while sorting the cotton fibres would do it.

[–] [email protected] 2 points 9 months ago* (last edited 9 months ago) (1 children)

Not even close. Sweat barely contains any DNA, and while theoretically a person could sweat enough to leave behind enough dna to be identified, it hasn't ever happened and would require copious amounts of concentrated sweat. Her hands would have to be constantly dripping with sweat, and this happened several times in several countries between 2001 and 2008. Maybe sweaty hands could contaminate one or two cotton swabs, but all of them over the course of several years? No.

[–] [email protected] 1 points 9 months ago

I did not realise sweat contained so little dna!