Yes, paranoia. You have about as many nonhuman cells in you as human cells. It’s hard to count. The would around you is full of microscopic life. You are abs

Yes, paranoia. You have about as many nonhuman cells in you as human cells. It’s hard to count. The would around you is full of microscopic life. You are absolutely covered in it. Your immune system did not evolve to function in a sterile bubble. Some people were traumatized as children to be so afraid of microorganisms that they make ridiculous decisions. The biggest culprit of foodbourne illness is sick cooks with poor hygiene. Not the failure to bleach every surface in your bathroom every time someone flushes the toilet. Oversterilization is a strong suspect in many sources of disease.