Discuss as:

Men use 'sniff test' to tell clothes' cleanliness, survey shows

TODAY's Kathie Lee Gifford and Hoda Kotb chat about a survey that says nearly half of men have no problem wearing clothes, including underwear many times before washing them and that they rely on the "sniff test."

More evidence that single guys are gross: A new survey shows that one in eight men wears his underwear two or three times between washes. Even grosser: More than half of the men surveyed admitted they rely on the "sniff test" to determine whether they wear their clothes over again, without washing.

Clorox paid for the phone survey of 1,200 people, and presumably wants us to be so disgusted we douse our respective men in bleach.

Watch Kathie Lee and Hoda discuss the survey results (starting at about 5:22 in the above clip).

To be fair to the guys, single women may be cleaner than their male counterparts, but the survey suggests women may be just as lazy: Single women were more than twice as likely as married women to buy new clothes -- instead of bothering to do the laundry. In fact, more than a third of unmarried women own more than 20 pairs of underwear -- presumably another way to avoid the chore.

We're sure your personal hygiene habits are nowhere near as gross as those of these survey respondents, but you should vote in our (anonymous!) reader poll, anyway.

Follow msnbc.com health writer Melissa Dahl on Twitter: @melissadahl.