The body oscillation frequency is 10 Hz. Are these vibrations sound?

yes they are. The vibrations perceived by the human ear, i.e., sound, lie in the range of 16 hertz. less than 16 hertz – infrasound

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.