|MadSci Network: Biochemistry|
Dear Desperate, For an explanation at the molecular level of what happens when you get your hair straightened, see one of my previous answers. The side effects of getting your hair straightened would probably be the same as the side effects from getting a perm since it is the same process. If you have ever had a perm, did your hair get fragile? If so, it will probably happen again. If not, it is really hard to say since some people's hair handles it very well and other people's hair doesn't. Unfortunately the only thing you can do if you have never had a perm is just try it.
Try the links in the MadSci Library for more information on Biochemistry.