In addition to working with the biodensity machine weekly at Ultimate Chirocare I have been seeing Dr. Zumhagen every 6 weeks or so for nutritional testing for the past 6 months.  He introduced me to PEMF, Pulsed Electro Magnetic Field therapy.  You simply lie down on a typical patient bed with a magnetic pad on it.  The machine pulses the magnetic field evenly through your body for 3 minutes.  It feels a little like the  electrical stimulation machine at a physical therapist's office.  

Dr. Zumhagen mentioned that PEMF has been shown to increase bone density.  Research articles I've found on Google Scholar have confirmed that. One study showed that PEMF appeared to decrease the number of osteoclasts (bone eating cells) in mice.  Another study found that 3 times weekly treatment with PEMF increased bone density in children with rheumatoid arthritis.

I visited a new doctor a couple of weeks ago, who practices integrative medicine in the south Chicago suburbs.  When I mentioned that I am looking for ways to increase bone density he suggested that I do a Google search on PEMF, or Pulsed Electro-Magnetic Fields. Now this is something new to me!  However, according to articles I read on Google Scholar, it is not a brand new treatment.  In fact, a review article about its effects on osteoporosis included over 100 studies/articles about it.  PEMF has been used for years to treat bone pain in osteoporosis patients, but researchers have found that it also enhances bone formation in younger people with "secondary osteoporosis" but there were mixed results with older patients.  Another article showed a positive effect of PEMF on bone density of rats. I've only read these few articles, so will continue looking for more conclusive studies.