Right along with the "must kill every insect" movement from the 1950s.
It's what some scientists believe caused the rise in allergies and autoimmune disease. We're supposed to be exposed to some pathogens when young in order to train our immune system. Without anything to attack there's a tiny chance it will start to attack our own tissues. There's gates for preventing this, however, they sometimes fail.
Yup: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1448690/ - Hygene Hypothesis.
Right along with the "must kill every insect" movement from the 1950s.
It's what some scientists believe caused the rise in allergies and autoimmune disease. We're supposed to be exposed to some pathogens when young in order to train our immune system. Without anything to attack there's a tiny chance it will start to attack our own tissues. There's gates for preventing this, however, they sometimes fail.