Right. I understand that part. Same reason why professional cyclists wear helmets. Helmets slow you down a bit but everyone would rather wear one for safety even if they wouldn't because they would take the risk for a better chance of winning.

Still thats not quite my question. Getting braces for your teeth seems to be ok. Some people are uncomfortable with breast implants while others think they're great (insert your own joke here). What about surgery to make you smarter? In my gut that seems wrong but I'm not sure why.