I think the brain is the most interesting organ because it is where we feel our personalities and capacity for decision making come from. The brain is a very complicated organ and I don’t think we can ever understand every single thing about it. I enjoy looking at the brain because most people’s brains look quite similar but the tiny differences are very interesting. People love to see a picture of their brain on the computer screen at the end of the scan and they always say “oh look, I really do have a brain!!”.