Magnets may be used instead of needles on acupuncture points to generate a mild and constant stimulation. There are magnets with various strength (gauss) available for this purpose. The magnets with high gauss are usually placed on the points for a short period of time (20-30 minutes). The magnets with lower gauss (e.g.,800 gauss or lower) may be placed on sensitive points with adhesive tape for 24-48 hours as an additional treatment to increase the effectiveness of regular acupuncture. Although it is controversial, magnet therapy is not used in patients with pacemakers, pregnant patients and patients with cancer.