最近英國媒體《衛報》做了一個很有意思的報導：
美國人多久換一次內褲？ 數據聞起來發臭……
文章說一家內褲公司的調查發現：45%的美國人不是每天勤換內褲！還有人甚至可以連續穿一周……
According to a study, 45% of them have worn the same pair of underpants for two days or longer.
調查發現45%的美國人穿同一條內褲，可以連續穿兩天以上。
13 percent of people said they』d worn the same pair for a week or more.
13%的人說他們一周都不換內褲。
在這些不換內褲的人裡，男性普遍要多於女性 。
The survey also found that men are almost 2.5 times more likely than women to wear their underwear for more than a week.
男性更容易不換內褲，一周不換內褲的男性數量是女性的2.5倍。
Via The Guardian
那麼問題來了，不是每天換內褲真的有什麼影響嗎？
紐約大學微生物和病理學教授Philip M. Tierno認為，兩天不換內褲也沒那麼可怕 。
"Generally speaking, it’s not going to hurt you as much as your hygiene may hurt your reputation," Tierno told TODAY.
「一般來說，這不會對你身體有什麼損害。損害更多的可能是你的名聲。」 Tierno說。
Everyone has naturally-occurring microorganisms in and on their bodies called a microbial flora, he said. While the fact that these microbes exist on the body may sound scary, the relationship between the host and organism is generally beneficial.
他說，每個人身上都有自然存在的微生物，稱為微生物菌群。雖然身上存在微生物聽起來很可怕，但它們和宿主的關係通常是有益的。
"Since they are your bacteria, unless you have a break in the skin or another conduit of entry into the body they won’t do you harm," Tierno said.
「因為它們是你自身攜帶的細菌，除非你皮膚有傷口或者有其他進入你體內的渠道，否則它們不會對你造成傷害，」Tierno說。
www.today.com
"Two days would probably be very little detection unless you grossly contaminate your underwear," said Tierno. "If you talk about a week or two, now we’re getting into robust growth of organisms and clearly there will be odor."
「兩天不換內褲很難被察覺，除非你把它弄髒了，」Tierno說。「但是如果你說一兩周不換，微生物大量繁殖就一定有味道了。 」
Tierno explained that as long as the person clean well after using the restroom, there's no need to fear harm from extended undergarment wear.
Tierno解釋說，只要在使用洗手間後清潔乾淨，就不必擔心換不換內褲。
www.today.com
到底應該多久換一次內褲呢？有網友突發奇想，提出「一褲四穿」……
laundrys expensive, yo. if no ones gonna see it, who cares if i wear my boxers twice lmao
洗一次衣服很貴啊。如果沒人看見，誰會在乎我一條內褲穿兩次。笑死我了。
Why not 4 times, 1 regular, 1 back in front, 1 inner out and 1 inner out back in front. SOOOOO NICE
為什麼不能「一褲四穿」呢？正穿穿一次，前後反著穿一次？外面穿一次？再翻個面穿一次
Disgusting. Its probably the same people who don't wash their hands after going to the washroom.
太噁心了，估計這群人上完廁所也不會洗手吧。
Via Twitter
來，留言談談你的感受！