Skyhigh,

Lots of careers cause lots of things, from mental illness and physical injury, to divorce and alcoholism. There are also lots of bogus "studies" out there claiming lots of things. Anyone can do some half-assed research, have it printed somewhere, and call it a "study." Do you have any solid evidence to back up this claim that pilots are more susceptible to OCD? And if not, last but of course not least, why do you suppose pilots are more susceptible to OCD?