Who is the host of Jeopardy!? What is an acute myocardial infarction? Alex Trebek is recovering at the hospital after suffering a mild heart attack last night at his home. He tells ET that he plans to resume taping in January. He is not, however, growing back the ‘stache so stop asking him about it and sending in pictures of him with different facial hair styles drawn on in Sharpie. He finds it disconcerting.