If you've decided to dress as a scary, creepy character this Halloween,
you're likely to have plenty of company. Witches, zombies, ghouls, vampires,
and werewolves are perennial favorites of young and old alike.
You should also know, however, that most of these characters have medical
and psychological "baggage," say the handful of experts who study
So don't just take along a vial of blood or some magic potion to make your
character more believable. Find out the possible medical and...