The movement is wide and narrow, and no signal can be detected. Generally, the signal line at the back is broken, so just connect the line. Massage by massage chair can dredge meridians, make blood circulation and maintain the balance of yin and yang. Therefore, massage can relax muscles, make joints flexible, make people feel refreshed and relieve fatigue, which plays an important role in ensuring health. Therefore, massage with a massage chair every day is good for health.