If you could go back would you choose chemistry, biology ect instead of being an Immunologist?

Question: If you could go back would you choose chemistry, biology ect instead of being an Immunologist?
- Keywords:
  biology,
  chemistry,
  immunology
Asked by Amelia and Kym to Craig on 6 Mar 2017.
- Craig O'Hare answered on 6 Mar 2017:
  
  I like being an immunologist but I have always thought neuroscience was really interesting as well. I think there’s something really cool about the idea of studying how the brain works.
  
  I did consider trying to be a chemist when I was doing my A-levels/leaving cert though but just feel in love with biology.

Question: If you could go back would you choose chemistry, biology ect instead of being an Immunologist?