Posted by 
All germs are not bad, some germs stimulate immune system and strength them to fight diseases. Exposing children to clean environment only can leads to severely hyper sensitised immune system making the children vulnerable to allergies and neurodevelopmental problems.
Early exposure to germs strengthen immune system and teaches it how to control its reaction to daily germs present in the atmosphere. Scientists believe that without exposure to dirt and germs early in life, the immune system will not be able control its reaction to everyday invaders like dust.
According to researchers, pre- and postnatal pet exposure enriched the amount of two types of bacteria- Ruminococcus and Oscillospira that reduce allergies and obesity in children.
Giving children fermented foods like miso and natto also exposed them to bacteria, microflora in fermented foods produce a protective lining in their intestines and strengthen it against salmonella and E.coli.
haleplushearty.blogspot.com