Not only is it safe but there are numerous benefits to massage therapy. However, we highly reccommend that you consult your doctor before using our massage chairs if you have any condition that could cause you harm. Including but not limited to: Pregnancy, menstruating, high fever, acute disease, osteoporosis, hypertension, using a ventilator, heart disease, spinal issues, not feeling well, circulation issues, using a pacemaker or any other internal medical apparatuses.