Infrasound - Low-Pitch Sounds

The video explores the concept of ghostly feelings and their possible connection to infrasound, which is sound too low for humans to hear. It explains the characteristics of infrasound, its sources such as volcanoes and elephants, and how elephants use it for long-distance communication. Although humans cannot hear infrasound, they can feel its vibrations, which might cause eerie sensations.

What sensations might humans experience when in the presence of infrasound?

What might cause the 'ghostly feeling' that some people experience?