Here is another one:
(
If you can't handle human parts on a dissection table, don't click.)
http://www.youtube.com/watch?v=eeue1ZmnukE
Got to love neurobiology. Same thing with Speed, although Speed simply creates holes in the brain. The fact about the brain is that it has no "pain captors", so you don't feel damage done to it, you only loose the ability of what that part of the brain made you do (which is gradual, so you don't see the result quickly, unlike most strokes, which cause death).
And bla bla bla, every smoker knows it, and most smokers don't care. It's your body, if you hate it, change.
Personally, I wouldn't date a guy who smokes either.