Clean up?  

Since the invention of hand sanitizers, air sanitizer, HEPA filters for vacuums and air conditioning units, we have been told that these are all good for us. The cleaner and more sanitized our environment is, the better. When I was younger and these things started appearing, my parents would discuss whether they should invest in such things because of my severe allergies and asthma. They tried different methods, but nothing seemed to help improve my health. In the last few years, we have heard that sometimes things can be 'too clean'. Being 'too clean' can lead to more bacteria growth and the body can become susceptible to more problems than before their environment became cleaner. Are we too clean for our own good? Is our environment too clean? How about our speech and what we think or believe? Have we cleaned up too much to where we are now susceptible to more problems? What are your thoughts?