Hyperthermia is elevated body temperature due to failed thermoregulation that occurs when a body produces or absorbs more heat than it dissipates. Extreme temperature elevation then becomes a medical emergency requiring immediate treatment to prevent disability or death.
Who is Doomsday, and why should we care about his fight against Superman, Batman, and Wonder Woman? The latest trailer for Batman v Superman: Dawn of Justice gave us our first look at the really big, really bad muscle for the film, the monster known as Doomsday. The character/creature has a long history with DC Comics and ties to a few very significant events, namely the death of Superman.
Modern stories tend to portray Bruce Wayne as the character's facade and the Batman as the truer representation of his personality (in counterpoint to the post-Crisis Superman, whose  Clark Kent  persona is the 'real' personality, and Superman is the 'mask').atman is at times a member of superhero teams such as the Justice League of America and the Outsiders. Batman has often been paired in adventures with his Justice League teammate Superman, notably as the co-stars of World's Finest and Superman/Batman series.