There is no damage or health meter for the characters in the game, so getting hit by other players only serves to knock them loose of a few of their coins. (xboxgamerreviews.com)
Your character has a separate health meter from the tank, and a gun meter in the overhead rooms. (hardcoregaming101.net)
Along with the red health meter, there's a white meter beneath it: the stress bar. (mygameslounge.com)