In fact, the hygiene hypothesis, embraced
by many scientists, purports that the reason that autoimmune diseases and atopic disorders (eczema, allergies, asthma) are epidemic in the Western world while virtually absent from developing nations is the hyper - sanitized,
antibiotic - ridden society in which we live, which has
decimated our gut microflora and thus obliterated their beneficial effects on our immune systems (after all, 70 % of our immune system resides within our gut)(Vighi et al., 2008).