“That’s not really how it works, mom.”
“That’s not what my doctor says.”
Love visiting with the Parents!
I mean, that is how it works, your immune system needs to be regularly exposed to things to stay active and function properly.
That’s the immune system as a muscle myth, comrade. That’s really not how it works. Most immunity you gain from one pathogen does not carry over to unrelated pathogens. And much like Covid demonstrates, there are a number of pathogens that do damage to your immune system.
What you need to understand is that millions of doctors out there are like this
being a “professional” in anything is utterly unrelated to reality. Think about how much of a failure Boeing’s planes are, and now think about how much stupid shit doctors can get away with because there’s no threshold for hard failure