Today in things you wish you didn't know: a new survey shows that 45 percent of Americans wear the same pair of underwear for two days or longer [1]. Meanwhile, 13 percent took things several steps further, admitting they'd worn the same pair for a week or more. No word on whether these respondents made use of the controversial "turn the underwear inside out" hack or just tossed them on right-side-in and fully embraced the "no-f*cks-given" lifestyle.

The survey of 1,000 Americans also revealed that men are 2.5 times more likely than women to wear the same underwear for more than a week. (Cue my "shocked" face.) Also, apparently 46 percent of Americans have pairs of underwear that are over a year old and 38 percent don't even know how old their underwear is. That might not seem like a big deal, until you consider that even laundered underwear is still teeming with bacteria [2], which is something fun to think about when you're getting dressed tomorrow. Underwear brand Tommy John, which ran the survey and released the results today, noted that underwear that's over a year old can also lead to health issues like UTIs [3], yeast infections [4], skin infections, and more.

So beyond throwing out (and maybe burning) all those ancient pairs of underwear in your drawers, the brand also recommended a few ways to take care of the pairs you're keeping around.

• Tumble-dry your underwear on low for half an hour after washing to minimize bacteria.
• If other members of your household are sick, don't wash your underwear in the same load.
• Don't wash contaminated underwear with other clothing or pairs.
• If other clothing contains or is stained by bodily fluids, wash it separately from your underwear.

We get it: sometimes laundry day hits before you're ready. Our advice: prepare for those emergencies ahead of time by grabbing a cheap five-pack of underwear the next time you're at Target. We don't think you'll regret it.