These are just a few of the many ways that the body responds to rhythm. Low-frequency oscillation causes the low rumbling of a close-in storm or a basse drum to sound very low. Research has explored pulsed electromagnetic fields (PEMF) therapy as an alternative to chemotherapy or invasive tumor surgery. It can be used for incontinence, back pain, headaches, anxiety disorders and muscle retraining after injury. Please see the link below. A proportion is the percentage of one variable's value in relation to all others. It is rare to use low-energy waves for treatment, but there are some studies.
