Your hair develops super powers Floating in the ISS gives your hair super strength that puts Biotin to shame. Coleman recalls being able to use a floating, single strand of hair to propel herself off a wall. Coleman didn't notice any difference in growth rate, but purposefully grew her hair out for her mission. "I really wanted to have my hair be a little bit long, because I wanted it to be clear that I was a woman in space -- not just an astronaut in a picture taken on the ground," says Coleman, who let her big, curly head of hair loose in space. "It was nice letting it have a little life of its own."
Also, pulling her hair back into a ponytail -- Coleman's preferred and practical style -- is a big no-no. In a weightless environment, hair elastics crank those annoying dents up 10 levels. "Your hair will be perpetually bent in one place," she says.
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