Question

From the point of view of your immune system, what are the most likely consequences of picking your nose?

Answer 1

The correct answer is It can leave dirt and allergens inside your nose, which your immune system must remove by creating specific antibodies which can attack you

The nose hair found in your nose is used to prevent bad things from going in, and if you pick your nose, you're directly putting stuff inside and ignoring your natural protection against bad things such as viruses or bacteria.

Answer 2

It can leave dirt inside your nose, which your immune system must remove by creating specific antibodies.