Jim: Well, why did you do that? You work here. Don't you want good insurance?
Dwight K. Schrute: Don't need it. Never been sick. Perfect immune system.
Jim: Okay, well, if you've never been sick, then you don't have any antibodies.
Dwight K. Schrute: I don't need them. Superior genes. I'm a Schrute. And superior brainpower. Through concentration, I can raise and lower my cholesterol at will.
Pam: Why would you raise your cholesterol?
Dwight K. Schrute: So I can lower it.