> Specialists in, for example, psychiatry don't need to understand how mitosis works, etc... A psychiatrist has to obtain an MD degree before they can start to

> Specialists in, for example, psychiatry don't need to understand how mitosis works, etc... A psychiatrist has to obtain an MD degree before they can start to study their chosen specialty. There's a reason for that: before you can treat a psychiatric illness, you have to be able to eliminate all other possible causes for the condition. I for one would not want to be treated by a psychiatrist that couldn't distinguish bipolar disorder from brain cancer.