What if I tell you not to change your underwear for five days? No way! But soon you will able to do this, of course if you want to. Japanese astronaut Koichi Wakata is slated to test this new kind of underwear during his current visit to the space station. The "state-of-the-art" undies were designed "to reduce the smells in normal clothing, absorb sweat and provide insulation." The underwear, developed by Japanese researchers, are made of antibacterial polymers and are fire-resistant. Astronauts normally change their clothes every three days. But with this "new invention", Koichi will attempt to wear the underwear for a full seven days So what is your longest record?
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