A very frequently asked question is "Can infrasonic waves kill you?" The answer to this question is yes but don't worry because not all frequencies of infrasound can really hurt you. This lethal frequency lies in 7 Hz. It is believed that 7 Hz is lethal because it matches the frequencies of your brain and organs. This match of frequencies can cause serious damage to your body or even death. Nausea, nervousness, cold, paranoia, depression, and blurred moments in peripheral vision are some common feeling that can be caused by infrasound. (Wikipedia, 2012), (Lowertheboom, .)
Stakes are pretty high out there. Be careful, folks.