someone who has insufficient interest in his health; opposite of hypochondriac
Jim is such a hyperchondriac that he ignore all warning signs until he was really, really sick
An individual who strongly feels that they have an acute, highly contagious disease i.e. Polio, Bubonic plague, Ebola etc. when in reality they have all but a simple cough and a mosquito bite.
Individual 1. sneezes- HO- CRAP, OH MY GOODNESS GRACIOUS ME, YOU CAN'T BE SERIOUS, I'VE GOT SWINE FLU. I'M TOO YOUNG TO DIE ! TOO YOUNG ! I HAVE A LIFE ! WHAT ABOUT MY FAM-
Individual 2. - you bloody hyperchondriac.