This is sort of the reverse of this meta question:
I feel on Bio.SE (pre-Health), I've already written an in depth answer to this Health question:
Effect of the common cold on the immune system
Now this is a question that is exactly within my field of expertise so I know I could write pages on the subject. Instead, I contained myself to this answer:
Would it be appropriate to just move it over with minor edits? I'm worried that if I start writing one again, I will only feel motivated to complete it if I go into more depth than my answer on Bio (which may already be long).
On the flip side it has attracted some pretty poor and flat wrong answers, so having a correct answer would certainly serve a lot of good.