What major should I declare in college in order to be best prepared for a career...

[Oneil G]

...in cardiosurgery? I'm a high school student in a pre-med magnet program and I am checking out universities like the University of Michigan, the University of Miami, and Yale University. I am also looking at Med Schools like John Hopkins Medical School in Baltimore, Maryland. I know that you can take a series of classes under the Pre-Medical monicker, but I've been told Pre-Med isn't a major. What should I major in, if that's the case.