Improve the bodyheat indicator

[Firebarrage]

Id just like to add that I don't think an actual temperature indicator should be up there. Its think its meant to be a "how do you feel" style deal, much like the heart icon (which doesnt tell you how damaged you are actually, just a vague idea). 

For actual temperatures, you should have to use your PDA. They all come with atmospheric scanners pre-installed, so anyone can do this at any time already.