There are two things that happen to you when you time travel. Your facial hair grows really long and you turn blue.

The facial hair thing is due to the massive changes in time and unless you're riding in a isolated space capsual from the vortex, things get pretty nasty with the aging of your particles and cells.
And the blue thing...well that's just from being coated by cosmic time dust. Yep. It's blue.
Duh, why do you think the sky is blue?