Ziff what majors do you plan on doing?
The theory I've seen tossed around goes omething like this:
Maths/Logic is determined by one side of the brain, emotion feelings etc the other side, we can only use one side of the brain at once, this is a scientific fact.
The majority of us ossilate incredibly quickly between the two sides, people who are bi-polar do not.
The is a proven statistical relationship between maths and being bi-polar, the rate of bi-polar-ism is more than twice that of the general community among mathematicians/physicists.
Assuming logically that being stuck in the numbers side of the brain is good for maths then this correlation is logical. Also it is reasonable to assume (and has been proven) that even those mathematicians not bi-polar they alternate slower than the general population between left and right brain sides.
Now we can see that in over-simplified terms right-wingers are hard numbers people and left-wingers are emotional bleeding hearts. Which clearly means that numbers thinkers such as mathematicians are much more likely to be right-wingers.
On the other hand I do not deny that there are emotional right-wingers (social conservatives) and hard numbers lefties eg left-wing economists/new labour (as in the UK).