[Teev6Hul]

Sweating would be a lot more effective in a near-vacuum, if we assume you'd wear one of those futuristic mechanical counterpressure space suite.

[k__]

How come? I thought sweating worked by helping to lead the heat to the air

[jacobush]

No, it works by using up heat to change a materials' phase, that is turning it from liquid to gaseous.

[zamalek]

... and phase-change is exactly how your freezer works.