Low Vitamin D Risks, Clinical Trials, Lower Back Pain, and More

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In Tonic, Dr. Norman Swan leads a team of reporters who cover all aspects of health, from lifestyle to complementary medicines to the most recent medical discoveries. Topics covered in this episode include: *The Harm Caused by Low Vitamin D Levels: We hear lots of talk about problems with low vitamin D levels, from increased risk of cancer to multiple sclerosis and more-and now research from the U.S. adds another: an increased risk of stroke. Dr. Norman Swan interviews an expert from Johns Hopkins University about the issue. *Using Virtual Reality to Change our Perception of Our Bodies: The same realistic technologies employed for modern video games can be applied to a health care setting, and virtual reality can be used to alter our perception of the way we see ourselves. Casey Beros investigates. *Rich Brophy Gets to Grips with His Reverberations: Gonging is an alternative therapy based on the idea that negative energies in the mind and body can lead to illness.