User blog comment:Garr9988/To Have or Not to Have/@comment-28082245-20190606114620/@comment-5782071-20190607060936

Ehhhhh, I wouldn't confuse writing/narrative convenience for canon occurences - the one time it was suggested being in the WH for prolonged periods of time affected one physically or mentally (such as regrowing Artie's appendix), it turned out to be a lie, and it was never brought up or suggested again.

Plus, how long was it in-universe between Artie getting stabbed and his sling disappearing in Season 1? He had it at the end of "Implosion", had it in "Duped", but I can't remember if he had it in "Regrets", and he lost it by "Breakdown"; Artie obviously had to have gotten medical attention for that wound, and I don't know how long such a non-vital-organ-hitting wound would take to heal irl.