Neuroticists (including Hypochondriacs) are emotional shit houses filled with sadness, low self-esteem, anger, anxiety, feelings of guilt, and frustration.
The neuroticist tries to compensate by being hostile and depressed. And they often smoke, do drugs and drink themselves to death.
Good news for the wacky worry warts but what about the rest of us driven into early graves thanks to their whining and gnashing of teeth? Don't we get a study too?