ever since my first year in undergraduate, I wanted to pursue a degree on theoretical high energy physics. so I took a lot of theoretical classes and started a double major in math (I dropped it after I took some classes I was interested in). however now I have only one year left, I began to consider neuroscience as an alternative. I've always been interested in human mind (it is the most complex structure we know so far after all) and I find the area very promising. but then, I don't think the main research methods and general approach to problems is as challenging as physics. besides, it lacks the "elegance" of physics. and then I will have to take a lot of classes in graduate school to make up my lack of knowledge in biophysics. Is there anyone took a sharp turn towards neuroscience? any ideas or suggestions are welcome.