The<unk> , or the Hound of the<unk> , is the alleged self-fulfilling prophecy that there is an increase in rate of mortality through heart attacks on days considered unlucky because of the psychological stress this causes on superstitious people. The term derives from the Sherlock Holmes novel The Hound of the<unk> s in which a hellish-looking dog chases Sir Charles<unk> , sufferer of a chronic heart disease. According to legend, the dog cursed his family,<unk>  runs in great fear and dies of a heart attack "with an expression of horror in his face." __TOC__
Baskerville effect
Mandelbaum effect
Windkessel effect
Flynn effect
Bouba/kiki effect
Martha Mitchell effect
Eagle effect
Bowditch effect