I actually asked a doctor about this. I said something along the lines of, If you accept some contamination, it might keep your immune system up to date on the latest bugs. He gave me a dirty look. From his point of view, any illness you can avoid, avoid it.
Then I thought about it. Part of our long term health is affected by tiny amounts of tissue damaged or destroyed by each illness. Part of our immune capabilities are affected by how much demand we put on them. A little bit stimulates the immune system, a lot damages it. Will next years cold virus be the next variation on this years bug, and so I will kind of be up-to-date if I have a cold this year? Is this years cold virus unrelated to last years, and I wasted a week of mild to moderate misery? Interesting topic.
Personally, I wash my hands after any contact with a public door knob or check-out counter. On the other hand, I am presently engaged with 50 year old cast iron sewer pipe repairs. (They probably don't contain all the germs on the planet.
) Is this penny wise and pound foolish? Some risks are inevitable, and some aren't. Pipes must get repaired, but I don't have to lick doorknobs.
Then I thought about it. Part of our long term health is affected by tiny amounts of tissue damaged or destroyed by each illness. Part of our immune capabilities are affected by how much demand we put on them. A little bit stimulates the immune system, a lot damages it. Will next years cold virus be the next variation on this years bug, and so I will kind of be up-to-date if I have a cold this year? Is this years cold virus unrelated to last years, and I wasted a week of mild to moderate misery? Interesting topic.
Personally, I wash my hands after any contact with a public door knob or check-out counter. On the other hand, I am presently engaged with 50 year old cast iron sewer pipe repairs. (They probably don't contain all the germs on the planet.