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See Inside December 2005

Personality Crash

The collision damaged his forebrain. Surgeons saved it. But they never checked his pituitary, and he is no longer the man he was

The sun had just risen as Dan Shelby began pedaling his bicycle down a main thoroughfare in Philadelphia. The computer programmer had to get to work early, and the traffic was still light. Seeing no oncoming cars, he quickly stuck out his arm as a signal and made an abrupt left onto the cross street.

He hadn't spotted the sedan already bounding up that road into the intersection, right at him. Dan's head crashed into the windshield, and he crumpled to the pavement, unconscious and bleeding.

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