"Dangerous Knowledge" - BBC documentary on mathematicians gone insane
video.google.com
video.google.com
It's not the thinking about infinity that did it. It's getting it right, and then being rejected and bullied by your peers that's likely to have an extremely adverse effect.
The program, however, does everything it can to imply that infinity shouldn't be considered lest it drive you over the edge.
Tabloid journalism from the BBC - most disappointing.
(edited for typos)
Try this instead ...