A Four hand massage is a kind of massage that has 2 masseurs or therapists for one client. They practice synchronized technical massage movements and apply the same pressure and pace on both sides of the body (left and right ) which increases the level of muscle relaxation and massage benefits.
It's a unique type of massage therapy and puts your entire body and mind in complete and deeper state of relaxation. This is because your brain cannot keep track and make no sense of the synchronized movements. Therefore, the brain stops thinking and focuses on the sensations which makes you feel fully immersed in the experience.