This tends to vary wildly depending on the individuals. I agree with Dabo's answer that there are certain degrees with a focus on body mechanics which may benefit their football abilities but from my experience, few people go that route.
Choosing a college major is hard and definitely a very personal decision so it really comes down to:
1. What are you passionate about? To be fair, this is a very difficult question to answer at ~20 years old so I recommend exploring different fields as early as possible in your college career.
2. What are you good at? Typically this is correlated with what you are passionate about, but it makes sense to go down a path of something you know you can be successful in.
3. What do you have time for? This is a question I bring up specifically because collegiate football is a huge time commitment so pursuing pre-med or Computer Science is DEFINITELY doable, but it will be difficult and you should be sure that is the route you'd like to go down.