38 Benefits of Full Body Massage You Still Don’t Know 1. Reduces muscular pain and spasms Full body massage can slightly reduce any muscular pain due to many causes. Full body massage work by stop the “pain-spasm-pain” cycle, this is a cycle when injury causes a muscle spasm. Full body massage also work by reducing local circulation that lead to a lack of oxygen and nutrients and prevent build-up of certain toxin and metabolic wastes. This metabolic waste and toxin will leads to more pain and muscle spasm. Full body massage increase blood circulation and relaxes the muscle which can reduce the pain inside it.