The Dyatlov Pass Incident: Even More Theories and Conjecture - Part 6

And now the rest of the "best" of the theories and conjectures. Some of the previous ones discussed and some of these may have overlapping interpretations of the facts.  Keeping all that in mind, let's finish.

9 ) The Infrasound Theory

First off, to understand how this theory works we should first define it.  Infrasound, or low-frequency sound, is sound with frequencies below the lower limit of human audibility. [below "normal" human hearing].  The ear is the primary organ for sensing infrasound but at higher intensities, it is possible to feel infrasound vibrations in various parts of the body.

99% of the time there is no effect on humans when we encounter infrasound. If one is subjected to intensive prolonged episodes, we begin to feel it more physically. Feelings of unease, nervousness, fatigue; hallucinating; being sick to the stomach; digestive problems; vertigo and imbalance. Longer term encounters can result in loss of sleep, shortness of breath, and feelings of extreme dread.

The Dyatlov Pass Incident: Theories and Conjecture - Part 4

So, just what happened to the 9 hikers on that mountain? There are many theories out there. Some based on facts, others that take one statement and run with it. Let's take a closer look at some of them.

1 ) There were KGB agents in the hiking party.