A degree in biology or a degree in computer science?

I am a soon to be college freshman who has aspirations to go to medical school in the future. However, right now I am stuck between deciding to major in biology or computer science. I want to major in something other than biology for in case I cannot go to medical school. Although right now, I am liking the idea of majoring in computer science right now because I love computers and also due to the fact of the growing technological influence on the global job market. However, my dreams of becoming a doctor far exceed that of my interests regarding computers. So what do you guys think I should major in? I feel biology will give me a strong background knowledge when it comes to the MCATs and for succeeding in medical school, but a computer science degree will open many doors for me in the future as well. Also, are bio majors in great demand as computer science majors are? Which degrees will generally be more practical in apply for jobs excluding medical prodessions?