It’s really interesting to realize how much humans are products of their environment.
I know that there is still a long-standing debate on nurture versus nature; However, I can tell you that a lot of our behaviors were determined by early events in our life that my wonderful friend and I might never understand! Unfortunately, a lot of the same behaviors are reinforced overtime until my wonderful friend and I are only functional under a certain set of conditions.
This is what I have realized in my own life, especially when it comes to indoor air handling devices plus air quality. When I was growing up I came from a pretty regular family; My associate and I had a mediocre dwelling with a central heating plus cooling system that works well enough to maintain our indoor air quality without driving up incredibly high utility bills. That being said, the a/c unit plus forced air furnace certainly made an excessive amount of noise whenever my wonderful friend and I were using the air quality control systems. I remember multiple evenings of listening to the a/c unit until I would drift off to sleep when I was a kid. I never realized that this relying on a/c background noise would stick with me for the rest of my life. To this afternoon, I cannot sleep at evening without a high quality indoor air handling unit nearby. I want to hear the comfortable dwelling plus thump of a current cooling system so that I can drift off to sleep easily, as you can imagine, this Heating plus Air Conditioning necessity is a sizable issue considering my career as a field medic in second world countries.