Earlier quoted context omitted.
> depress a lot of immunity That seems odd, in a non-city context wouldn't eating and drinking be one of the riskiest things in terms of getting sick? Edit: After thinking about it maybe it's related to not overreacting to everything we eat and causing allergies?
Compared to not-eating and drinking? No.
Either way I don't see how what you say is true. If I stop eating or drinking how does that make me catch the flu or something the immune response helps against?
It seems having it active when I eat would be the most useful, which is why I wondered why it worked how it does.