I'm writing a research essay on euthanasia. Should I use capital E or small e?

[webnewland]

During the essay, should I keep the e Capital or small cap?
It's a research essay.
Thanks

 

[snow patrol]

I should think it's fine to keep it lower-case.

 

[technogeeky]

Small e.

It's not a proper noun.

 

[webnewland]

Ok, Thanks guys