She also clearly gets water and goes into the toilet with no camera to clean up. She comes across as far too organised and energetic to neglect personal hygiene, as some people seem to suggest she does.
Like everybody else I'd love her to get her gear off and take a shower, but I respect that she sticks to her values and doesn't give in to pressure. Something she isn't given much credit for is that not getting naked, not taking a shower, sleeping in bra etc is taking the more difficult and less comfortable option, but she does it anyway.