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According to a new study, you should throw away your underwear every YEAR...or it becomes a health risk.
Even though you're washing them after you wear them...hopefully...old underwear can still develop a buildup of bacteria like E. coli. That can lead to you getting infections down there. And NO ONE wants those infections.
Here's the really crazy part of this story: not everyone is washing their regularly. SERIOUSLY?? The study found 18% of men and 10.5% of women wear underwear multiple times without washing them.
And one more thing: the researchers also say you probably shouldn't wear underwear when you SLEEP...nude is better.
SOURCE: Daily Mail