The foundation of EMDR treatment is that our emotional health and our physical state are intertwined. Trauma causes our brain to interpret and retain memories inaccurately. The wrong kind of storage can make old memories seem highly present. Clients may respond as they did at the time of the trauma in response to similar or unrelated stimuli in the present. The mind perceives the upsetting experience as occurring right now. EMDR uses bilateral stimulation (BLS), auditory tones, vibrations, or eye movements to accelerate the brain’s capacity to process and heal a troubling memory. BLS, which occurs naturally during REM sleep, causes the two sides of your brain to work together to reconstruct the memory.