So why is laughter so hard to control? Research suggests that there are two kinds of laughs: helpless, involuntary laughter ...

“Beetlejuice” is based on the 1988 Tim Burton film of the same name. For those who have seen the movie, don't expect a rerun … the characters are the same, but the plot shifts are fairly enormous.

The symptoms: The woman visited a clinic because she had long experienced bursts of uncontrollable laughter, which doctors described as "mirthless" in a report of her case. According to the patient, ...