The energy therapy may be on static magnetic fields (constant fields generated by permanent magnets) or pulsed electromagnetic fields (intermittent magnetic fields generated by an electromagnet) are based. Doctors put magnets on the body or place of injured body parts in an induced electric field to relieve pain and promote healing. Documents and applications Straight magnets are a popular method of treatment for various diseases of the musculoskeletal system, although did show no effect in several studies, not even for the most common application of pain relief. In the static magnetic field therapy systematic Überprüfungen1 have shown no benefit for chronic pain, and high-quality studies found no benefit for osteoarthritis and RA. The biological effect of the pulsating magnetic field therapy is significantly different from that of the static magnetic field. Preliminary results suggest that pulsed electromagnetic therapy can relieve pain. The use of pulsed electromagnetic fields for the healing of complicated bone fractures is well documented. 1Pittler MH, Brown EM, Ernst E: Static magnets for reducing pain: systematic review and meta-analysis of randomized trials. CMAJ 177 (7): 736-42, 2007. contraindications possible contraindications for such magnets are. B. Pregnancy (effects on the fetus are unknown), implanted cardiac devices, an insulin pump or paving drugs.