[ Ken nods; he has no hesitation about owning this fact. ] People, or humans at least, grow stressed more easily when in enclosed spaces without vitamin D exposure. This is just my presumption, but by including a carriage addressing both mental and physical health, it may intend to ease the strain our living conditions impose.

[ Or, you know, Ken, there could have been a poll that you didn't answer because you were so torn about whether to say "plants" (Wormmon likes them) or "spa" (you like them). And the darn thing closed on you.

But obviously that is not what happened here. ]