# 12 – dirt is good

Over sterilizing and keeping your children from getting dirty is not a good idea. Boot them out into your backyard, play in the mud, contact with germs is actually beneficial for the child’s health and it can stimulate their immune system. So it’s good news if you believe in the 5-second rule even if it doesn’t exist as germs get on the food dropped on the ground instantly.

Challenge: eat dirt.