Whatever you do, do not play this video on a loud speaker. It will zap every ounce of energy from you. This infrasound audio allegedly came from a Bigfoot. Some researchers believe Bigfoots use infrasound to stun their prey.
Infrasound is dangerous and very effective, due to its strong vibrations, or oscillations. Infrasound waves hug the ground, travel for long distances without losing strength, and are unstoppable. According to experts, not much amplitude is needed to produce negative effects in the human body, and even mild exposure requires several hours, or even days, to reverse symptoms.